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Equipment Discussions >> Eyepieces

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Astrojensen
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New 16mm - 8mm Zoom with constant 66 field
      #5448509 - 09/30/12 01:48 PM

I am extremely surprised no one has screamed it out all over the internet already, since this has been something yearned for over and over again whenever the future of zoom eyepieces were discussed here:

A 16mm - 8mm Zoom with 66 constant AFOV. Also LER for eyeglass users. All for about $500.

http://www.cloudynights.com/ubbthreads/showflat.php/Cat/0/Number/5447882/page/0/view/collapsed/sb/5/o/all/fpart/1

So, now I've done the screaming.


Clear skies!
Thomas, Denmark


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Ava
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Reged: 11/30/11

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Re: New 16mm - 8mm Zoom with constant 66 field new [Re: Astrojensen]
      #5448543 - 09/30/12 02:06 PM

Yeah, I just noticed this morning over on AM, seems very exciting indeed, would be perfect as high power zoom in an 8" SCT. If it is indeed in the same class as the Leica ASPH, i.e. Brandon class, it could instantly replace most of my orthos, and with more field to boot...

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Doug Culbertson
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Re: New 16mm - 8mm Zoom with constant 66 field new [Re: Ava]
      #5448557 - 09/30/12 02:10 PM

If I hadn't just sprung for a Leica ASPH I would be all over this one. I may still eventually try a pair for binoviewing though.

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Paraclete
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Reged: 01/15/11

Re: New 16mm - 8mm Zoom with constant 66 field new [Re: Astrojensen]
      #5448573 - 09/30/12 02:13 PM

Sounds amazing for Newtonian owners.

I have grown to love zoom eyepieces suddenly after all these years.


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Sarkikos
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Re: New 16mm - 8mm Zoom with constant 66 field new [Re: Paraclete]
      #5448591 - 09/30/12 02:23 PM

For a truely well-corrected field, Newtonian users would need to put this Zoom into a Paracorr. Will someone please buy one and let us know if it will work in a Paracorr and at which setting?

It should be nice for planets and DSO in my 10" f/4.8 Newt: 75x-150x native mode, 150x-300x with a 2x Barlow. If I had a pair for binoviewing, with an OCA, that'd also be about 150x-300x.

Mike


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Sarkikos
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Re: New 16mm - 8mm Zoom with constant 66 field new [Re: Ava]
      #5448597 - 09/30/12 02:25 PM

Quote:

Yeah, I just noticed this morning over on AM, seems very exciting indeed, would be perfect as high power zoom in an 8" SCT. If it is indeed in the same class as the Leica ASPH, i.e. Brandon class, it could instantly replace most of my orthos, and with more field to boot...




Than it would still not replace XO's or ZAO's.


Mike


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johnnyha
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Re: New 16mm - 8mm Zoom with constant 66 field new [Re: Sarkikos]
      #5449039 - 09/30/12 07:35 PM

The most interesting thing is the admission from the vendor now that the Leica ASPH Zoom "sucks a bit". I would LOVE a high quality zoom eyepiece with these specs but really, since when was Meopta a "world renowned" eyepiece company?

And how long will it be before someone sources these exact same eyepieces at a considerably lower cost?


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plyscope
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Reged: 11/23/06

Loc: Perth, West Australia
Re: New 16mm - 8mm Zoom with constant 66 field new [Re: johnnyha]
      #5449062 - 09/30/12 07:46 PM

Meopta is well regarded in binoculars and other military optics.
Also the machined adapter (for astro use) custom made by APM has to cost some more money.


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johnnyha
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Re: New 16mm - 8mm Zoom with constant 66 field new [Re: plyscope]
      #5449068 - 09/30/12 07:51 PM

Quote:

Also the machined adapter (for astro use) custom made by APM has to cost some more money.




Well that is certainly true. So it's a $110 adapter.



I don't know anything about Meopta but I DO love the specs...


Edited by johnnyha (09/30/12 08:35 PM)


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chboss
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Re: New 16mm - 8mm Zoom with constant 66 field new [Re: johnnyha]
      #5449541 - 10/01/12 02:03 AM

I remember owning a photographic enlarger for B/W in the late 80's made by Meopta including lens, solid east block work but not outstanding....
I would wait for some user comparison between the Leica and the Meopta before jumping on it.

regards
Chris


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dscarpa
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Re: New 16mm - 8mm Zoom with constant 66 field new [Re: Astrojensen]
      #5450169 - 10/01/12 01:37 PM

B & H has a 20X-70X Meopta Zoom in addition to the 30X-60X. David

Edited by dscarpa (10/01/12 01:41 PM)


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sixela
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Re: New 16mm - 8mm Zoom with constant 66 field new [Re: johnnyha]
      #5450541 - 10/01/12 05:40 PM

Quote:

The most interesting thing is the admission from the vendor now that the Leica ASPH Zoom "sucks a bit".




Well, in an f/4.5 scope if you don't put it in a barlow it does "suck a bit" at the edge, especially if you look at what you paid it - I don't think anyone else has ever said otherwise.

That's why mine is really only used with a barlow (either a VIP yielding 1.65x or a Zeiss yeilding 2.3x) unless it's used for traveling with a travelscope and just one eyepiece.

I have no doubt that the edge correction can be better on that zoom in a fast scope. That doesn't mean that it can beat Baader Genuine orthos when looking at Jupiter or when pulling in faint minute galaxies, which the Leica can.

It'd be interesting to see how well it'd perform against #7466 and #7467 Nikon zooms, though (the Nikon loses against the Leica but can be used in a bino, and then on planets etc. it wins against the cyclops Leica).


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ibase
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Re: New 16mm - 8mm Zoom with constant 66 field new [Re: sixela]
      #5450662 - 10/01/12 07:01 PM

Wow exciting new zoom in the market, the zoom eyepieces have really come of age after being ridiculed for the longest time.

Best,


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Sarkikos
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Re: New 16mm - 8mm Zoom with constant 66 field new [Re: ibase]
      #5463824 - 10/10/12 01:10 PM

Has anyone here on CN used this new zoom eyepiece yet? I mean, besides Herr Ludes. Is there a first light report?

Mike


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Doug Culbertson
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Re: New 16mm - 8mm Zoom with constant 66 field new [Re: Sarkikos]
      #5463894 - 10/10/12 01:52 PM

As much as I would like to try one, I'm tapped after springing for the Leica ASPH. I would love to hear a report though, especially in a binoviewer. Especially in a binoviewer used by someone like me; i.e. almost a cyclops due to such a narrow IPD.

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andydj5xp
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Re: New 16mm - 8mm Zoom with constant 66 field new [Re: Sarkikos]
      #5465000 - 10/11/12 09:03 AM

Quote:

Has anyone here on CN used this new zoom eyepiece yet? I mean, besides Herr Ludes. Is there a first light report?

Mike




Searching the net I didn't find a report/review. The specs do look interesting, but there will not be an appreciable response unless a "brave soul" will get one to be the first reviewer. How about you, Tammy?

Speaking from experience I've started my "zoom career" only after having seen the report by Allister St. Claire here on CN (Comparison of 4 zooms). Something like this will be neccessary to get the Meopta zoom started. Perhaps the Leica ASPH zoom also would be almost unknown unless a "brave soul" like me would have given it a try.

Andreas


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Sarkikos
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Re: New 16mm - 8mm Zoom with constant 66 field new [Re: andydj5xp]
      #5465004 - 10/11/12 09:06 AM

Tammy is a "brave soul." He really should lead the charge on this one. The Charge of the LIGHT Brigade?


Mike


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BillP
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Re: New 16mm - 8mm Zoom with constant 66 field new [Re: Astrojensen]
      #5465206 - 10/11/12 11:29 AM

I would be more excited if it's price were around $300 AND if it were designed as an astronomical eyepiece instead of a spotting scope EP that requires the adapter which will put the field stop way above the focuser so it will need lots of in-focus.

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Sarkikos
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Re: New 16mm - 8mm Zoom with constant 66 field new [Re: BillP]
      #5465263 - 10/11/12 12:02 PM

Needing lots of in-focus might necessitate an OCA or Barlow to come to focus. Then we need to be concerned about the quality of the OCA or Barlow. (Although this seems to work out fine when I binoview planets or the Moon.)

Also, maybe I wanted a 16mm-8mm Zoom, not one that is effectively 8mm-4mm. I'd rather use something like this natively if at all possible.

Mike


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andydj5xp
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Re: New 16mm - 8mm Zoom with constant 66 field new [Re: Sarkikos]
      #5465301 - 10/11/12 12:27 PM

Quote:

Needing lots of in-focus might necessitate an OCA or Barlow to come to focus.




With a 2" adapter the in-focus requirements will not be large, may be only 5mm. But the 2" format will cause problems for bino viewing which otherwise would be an advantage of this zoom due to its slim body.

Andreas


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Sarkikos
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Re: New 16mm - 8mm Zoom with constant 66 field new [Re: andydj5xp]
      #5465334 - 10/11/12 12:55 PM

Yes, if I bought two for binoviewing, I'd definitely choose the 1.25" adapters. In any case, any eyepiece I use with my binoviewer is going to require an OCA to come to focus in my Newts. That's just the way it is.

I could always insert this Meopta Zoom w/1.25" built-in adapter into a 1.25"-2" adapter to use it "directly" - hardly the word in this case - in my 2" focuser. Would there be a chance of vignetting after all this "adaptation?" I suppose, though, that the Zoom has a sufficiently narrow field stop that this would not be likely. Vignetting might be more likely in my old-school Burgess Binoviewers.

Mike


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johnnyha
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Re: New 16mm - 8mm Zoom with constant 66 field new [Re: BillP]
      #5465531 - 10/11/12 03:26 PM

Quote:

I would be more excited if it's price were around $300 AND if it were designed as an astronomical eyepiece instead of a spotting scope EP that requires the adapter which will put the field stop way above the focuser so it will need lots of in-focus.



Hey, I just read a nice review of the Meopta spotting scope, it has "fluoride optics"!


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csrlice12
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Re: New 16mm - 8mm Zoom with constant 66 field new [Re: johnnyha]
      #5465624 - 10/11/12 04:20 PM

Then it'll never need dental work!

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Tamiji Homma
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Re: New 16mm - 8mm Zoom with constant 66 field new [Re: andydj5xp]
      #5466566 - 10/12/12 09:40 AM

Quote:

How about you, Tammy?




I'll let you know when it arrives here Maybe in two weeks or so.

Tammy


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Doug Culbertson
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Re: New 16mm - 8mm Zoom with constant 66 field new [Re: Tamiji Homma]
      #5466598 - 10/12/12 10:06 AM

Quote:

Quote:

How about you, Tammy?




I'll let you know when it arrives here Maybe in two weeks or so.

Tammy




I knew it! I really look forward to the report. BTW, did you purchase one or a pair for the bino?


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Tamiji Homma
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Re: New 16mm - 8mm Zoom with constant 66 field new [Re: Doug Culbertson]
      #5466620 - 10/12/12 10:23 AM

Hi Doug,

Just one eyepiece for now. The tapered shape of the eyepiece worries me a bit for binoviewer use. I mean IPD wise.

Tammy


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Doug Culbertson
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Re: New 16mm - 8mm Zoom with constant 66 field new [Re: Tamiji Homma]
      #5466632 - 10/12/12 10:28 AM

Yes, that's my problem as well. My IPD makes it hard for me to use anything much wider than a pair of plossls. For example, I could barely use a pair of Radians!

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Sarkikos
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Re: New 16mm - 8mm Zoom with constant 66 field new [Re: Doug Culbertson]
      #5466674 - 10/12/12 10:59 AM

I have a pair of Meade 5k UWA 6.7mm that I manage to binoview but the eyepieces are tight. I really should deshroud them!

Mike


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jrbarnett
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Re: New 16mm - 8mm Zoom with constant 66 field new [Re: Astrojensen]
      #5467508 - 10/12/12 10:42 PM

You can get two different focal lengths, actually, and they are $399 in the US (30-60x or 20-70x). You'd need an adapter, though.

http://www.eurooptic.com/meopta-spotting-scopes.aspx

Regards,

Jim


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mkothe
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Re: New 16mm - 8mm Zoom with constant 66 field new [Re: jrbarnett]
      #5467960 - 10/13/12 10:02 AM

They also make an adapter to mount your iphone to the eyepiece for photos :-)

http://www.eurooptic.com/meopix-iphone-iscoping-adapter-540810.aspx

Could be fun.
Michael


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Tamiji Homma
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Re: New 16mm - 8mm Zoom with constant 66 field new [Re: Tamiji Homma]
      #5495072 - 10/29/12 05:55 PM

It is finally here. It took longer than usual.
It was shipped on Oct 16th, arrived today on Oct 29th.

Just took regular snapshot. I did take a quick peek at terrestrial view. Good eye relief, comfortable, twist up eyeguard. The tapered eyepiece shoulder is about 60mm in diameter. I think I can use those in binoviewer.

Meopta with APM 2" M42 adapter on left, Leica with Starlight Instruments' adapter on right:


Eye lens:


Field lens:


More later when I get a chance to look through at night.

Tammy

Edited by Tamiji Homma (10/29/12 08:57 PM)


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johnnyha
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Re: New 16mm - 8mm Zoom with constant 66 field new [Re: Tamiji Homma]
      #5495246 - 10/29/12 08:09 PM

Thanks Tammy. Looks like the Leica has better coatings and I like the overall build quality of the Leica better (what's with the rubber skirt? Or is that rubber?). Anxious to see how they compare. BTW do you see CA in the edge of the Leica, mine shows quite a bit in the outer 15%-20% or so on luna without a barlow.

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sixela
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Re: New 16mm - 8mm Zoom with constant 66 field new [Re: johnnyha]
      #5495301 - 10/29/12 08:57 PM

You mean lateral colour?

Strange, can't see it at all (well, I can see it, but it's not more than in any other wide field I know), but then I always barlowed the Leica when I was using it.


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Tamiji Homma
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Re: New 16mm - 8mm Zoom with constant 66 field new [Re: johnnyha]
      #5495326 - 10/29/12 09:18 PM

Hi Johnny,

It is hard to judge coating quality from the photo. I'll take better photo later.

The skirt is made of similar material as eye guard. The eye guard is similar to Leica Zoom eye guard but Leica one is bit harder than Meopta Zoom.

When I use Meopta with BARCON/AP16T, I noticed long focal length side had vignetting, something similar to Televue Plossl with Barlow lens. It disappears soon as zoom-in (shorter focal length) and field edge is clean.

Field is very flat. It reminds me Delos. With TMB 130SS f/7, it is very sharp to the edge. I see very little pincushion as I expected. This reminds me Nikon NAV SW.

The weight is about 440 grams with 2" M42 thread adapter.

PS: I don't see much lateral color with Leica. I wonder if you are seeing out of focus CA, field curvature maybe? Does it disappear (or lessen) when you refocus to edge?

Tammy


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ohioalfa64
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Re: New 16mm - 8mm Zoom with constant 66 field new [Re: Tamiji Homma]
      #5495367 - 10/29/12 09:42 PM

Tammy, will the Meopta fit and focus to infinity in your APM 100ED bino?

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johnnyha
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Re: New 16mm - 8mm Zoom with constant 66 field new [Re: ohioalfa64]
      #5495438 - 10/29/12 10:31 PM

The lateral color I am seeing (which is a form of chromatic aberration, at least) does not focus out, which was my first thought since I'm using the FS152 and it shows color either side of focus. Actually I will try again tonight to see if refocusing makes any difference, I'm not 100% sure. But what I see is a yellow-green halo on the edge of the Moon when it almost fills the FOV, and a bright blue-purple halo on the edge when the Moon is almost leaving the FOV, and only in the outer 15%-20% of the field with the unbarlowed Leica. This was with the Moon high above the horizon. Very, very bright, the colors are simply electric. I see nothing like it in any of my other eyepieces with the FS152 - I have never seen any extraneous color on the Moon except when it is low to the horizon. I tried both my AP Maxbright diagonal and the 2" Zeiss prism with the same results.

OK I just went out and checked, it does not focus out BUT... the lateral color disappears almost completely when I move my eye off axis and view "across the eyepiece" to the far side - but I can then ONLY see the outer edge of the FOV. Anyway this does lead me to believe it's lateral color and probably more pronounced in my case due to the combination of the zoom lenses, the angle my eyes are viewing from, and my getting-older eyes.

Edited by johnnyha (10/29/12 11:09 PM)


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Tamiji Homma
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Re: New 16mm - 8mm Zoom with constant 66 field new [Re: ohioalfa64]
      #5495534 - 10/29/12 11:23 PM

Quote:

Tammy, will the Meopta fit and focus to infinity in your APM 100ED bino?




Nope. With 1.25" adapter at bottom of M42 thread, focal plane is waaaay up so it won't come to focus to infinity with APM 100ED binoculars.

Tammy


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sixela
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Re: New 16mm - 8mm Zoom with constant 66 field new [Re: johnnyha]
      #5495745 - 10/30/12 04:16 AM

Quote:

The lateral color I am seeing (which is a form of chromatic aberration, at least) does not focus out,




Ah -- it now rings a bell. Try to move your head and see if you can make it disappear. I have a hunch that this is lateral colour you get because when you look at the side the eye pupil is no longer centred on the exit pupil. Took me some time to get used to the eyepiece to avoid it.

If you have to move your eye too far out to cancel it, it suggests you're not holding your head at the correct distance either (for me the eyeguard is a bit short even in the extended position).


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johnnyha
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Re: New 16mm - 8mm Zoom with constant 66 field new [Re: sixela]
      #5495769 - 10/30/12 05:22 AM

Yes, thanks Alexis. I had some luck after working with it a bit and moving my head around. It's a minor distraction, this eyepiece is just fantastic. It really is like a widefield ZAO-II zoom.

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Doug Culbertson
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Re: New 16mm - 8mm Zoom with constant 66 field new [Re: johnnyha]
      #5495795 - 10/30/12 06:39 AM

Another convert! Glad that you find the Leica as amazing as I do. I was really surprised that a zoom could even come close to the legendary ZAO II.

Tammy, that new Meopta looks like even I could bino with it!


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andydj5xp
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Re: New 16mm - 8mm Zoom with constant 66 field new [Re: johnnyha]
      #5495797 - 10/30/12 06:45 AM

Quote:

Yes, thanks Alexis. I had some luck after working with it a bit and moving my head around. It's a minor distraction, this eyepiece is just fantastic. It really is like a widefield ZAO-II zoom.




Congrats to your new zoom. The Leica ASPH really is tailored for a high end refractor like your FS152.

For visual use you seriously should consider lifting up the rubber eyecup as described here. It makes the positioning of the eye much easier and at the same time works for suppressing light from the side.

Andreas


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Doug Culbertson
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Re: New 16mm - 8mm Zoom with constant 66 field new [Re: andydj5xp]
      #5495802 - 10/30/12 06:53 AM

Just think Andreas, you started all of this!

I never thought that I would see the day in which a zoom would generate more threads than Brandons.


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Tamiji Homma
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Re: New 16mm - 8mm Zoom with constant 66 field new [Re: Doug Culbertson]
      #5495962 - 10/30/12 10:09 AM

Quote:

Tammy, that new Meopta looks like even I could bino with it!




Hi Doug,

The particular configuration (Meopta -> APM 2" M42 -> #T2-14(1.25" nosepiece)) needs about 55mm extra inward focus comparing to Panoptic 24.

This could be a show stopper for binoviewer use, in terms of reaching focus to infinity.

Tammy


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Doug Culbertson
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Re: New 16mm - 8mm Zoom with constant 66 field new [Re: Tamiji Homma]
      #5495970 - 10/30/12 10:12 AM

Tammy,

Wow, that's a lot of infocus! That would definitely be a deal breaker for my Starmaster, and I'm not sure that it's worth the extra expense for my EON 120.

Well then, that should save me a bit of money!


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Tamiji Homma
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Re: New 16mm - 8mm Zoom with constant 66 field new [Re: Doug Culbertson]
      #5495999 - 10/30/12 10:36 AM

Yes, it needs ample inward focus distance.

In 2" mode, Meopta->APM 2" M42 adapter needs extra 10mm inward focus than Ethos 17.

I think Ethos 17 is the eyepiece that needs most inward focus distance in the current Televue lineup. You need extra 10mm over Ethos 17.

Tammy


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andydj5xp
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Re: New 16mm - 8mm Zoom with constant 66 field new [Re: Doug Culbertson]
      #5496031 - 10/30/12 11:06 AM

Quote:

Just think Andreas, you started all of this!




Because Bob S. has accused me to be "hugely responsible for many of us getting sleepless nights these days" I've contacted my lawyer how to react. He said it would be better to plead guilty in order to get as low a sentence as possible.

Andreas


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Re: New 16mm - 8mm Zoom with constant 66 field new [Re: Tamiji Homma]
      #5496061 - 10/30/12 11:40 AM

Quote:

Yes, it needs ample inward focus distance.




I sense a barlow or an OCA in some people's future.


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Re: New 16mm - 8mm Zoom with constant 66 field new [Re: sixela]
      #5496070 - 10/30/12 11:47 AM

Another high-end Zoom that requires an OCA or Barlow? Pfft...

I think I'll make do with my trusty Baader Zoom and other eyepieces as needed.

Mike


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Re: New 16mm - 8mm Zoom with constant 66 field new [Re: andydj5xp]
      #5496107 - 10/30/12 12:23 PM

Quote:

Quote:

Just think Andreas, you started all of this!




Because Bob S. has accused me to be "hugely responsible for many of us getting sleepless nights these days" I've contacted my lawyer how to react. He said it would be better to plead guilty in order to get as low a sentence as possible.

Andreas




My lawyer has already contacted yours and a settlement is in the works. It appears that I am going to have to pay YOU for the many years you spent analyzing this eyepiece. I suspect that your hourly rate is steep given the thoroughness of the tests and I am throwing myself at your mercy for a reduced settlement. Bob S.


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Re: New 16mm - 8mm Zoom with constant 66 field new [Re: andydj5xp]
      #5496187 - 10/30/12 01:25 PM

Quote:

For visual use you seriously should consider lifting up the rubber eyecup as described here. It makes the positioning of the eye much easier and at the same time works for suppressing light from the side.



Hmm, I'll check that out thanks Andreas. I actually found the next-to-last setting of the twist up eyecup good for me, that's the point where I can just still see the whole field at the high mag 80* setting. I find eye positioning pretty easy with the Leica, I get no more blackouts than with my XWs - I can induce them by getting too close, but Its easy to get a nice comfy view.

It's funny that the eyecup has click stops but the zoom mechanism doesn't.


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Re: New 16mm - 8mm Zoom with constant 66 field new [Re: Tamiji Homma]
      #5497919 - 10/31/12 03:08 PM

I did field stop measurement and a little more observation.
At long focal length end (15.8mm), I see AMD effect very well.
Center is closer (bigger) and magnification drops toward edge.

Exaggeratedly, I feel like looking at flattened half sphere, center is closer and edge is farther.

Straight line keeps straight very well even at edge. It is for good terrestrial viewing, specially cityscape with full of straight lines.

It does very well for intended use, ie: spotting scope eyepiece.

Code:

fs: field stop in millimeter
pafov: calculated pseudo AFOV
adv_afv: advertised AFOV

fs 9.09 pafov 65.9 adv_afv 66.0 ratio -0.1% Meopta@60x-7.9mm
fs 19.42 pafov 70.4 adv_afv 66.0 ratio 6.7% Meopta@30x-15.8mm



Tammy


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Bob S.
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Re: New 16mm - 8mm Zoom with constant 66 field new [Re: Tamiji Homma]
      #5498133 - 10/31/12 05:31 PM

Quote:

I did field stop measurement and a little more observation.
At long focal length end (15.8mm), I see AMD effect very well.
Center is closer (bigger) and magnification drops toward edge.

Exaggeratedly, I feel like looking at flattened half sphere, center is closer and edge is farther.

Straight line keeps straight very well even at edge. It is for good terrestrial viewing, specially cityscape with full of straight lines.

It does very well for intended use, ie: spotting scope eyepiece.

Code:

fs: field stop in millimeter
pafov: calculated pseudo AFOV
adv_afv: advertised AFOV

fs 9.09 pafov 65.9 adv_afv 66.0 ratio -0.1% Meopta@60x-7.9mm
fs 19.42 pafov 70.4 adv_afv 66.0 ratio 6.7% Meopta@30x-15.8mm



Tammy




Tammy, I do not read well between the lines. What I think I am hearing is that the Meopta zooms are not at the level of the Leica ASPH in terms of performance for astronomy purposes? Bob


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Re: New 16mm - 8mm Zoom with constant 66 field new [Re: Bob S.]
      #5498253 - 10/31/12 06:49 PM

Hi Bob,

I haven't done any side-by-side comparison yet. So there is no hidden message between lines

So far I can confirm that Meopta Zoom eyepiece has excellent reflection, ghosting suppression performance as Markus said in Vendor Forum.

I noted that I see vignetting at long focal end with Barlow lens. I see the same without Barlow lens. It quickly disappears when you zoom-in. It is similar to Leica Zoom.

Contrast is what I am interested when I observe DSO. I'll have to wait for dark, high transparent night for that.

Tammy


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Re: New 16mm - 8mm Zoom with constant 66 field new [Re: andydj5xp]
      #5498348 - 10/31/12 07:47 PM

Quote:

Quote:

Just think Andreas, you started all of this!




Because Bob S. has accused me to be "hugely responsible for many of us getting sleepless nights these days" I've contacted my lawyer how to react. He said it would be better to plead guilty in order to get as low a sentence as possible.

Andreas




I seriously think Markus Ludes owes you a Christmas present


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Re: New 16mm - 8mm Zoom with constant 66 field new [Re: mkothe]
      #5498577 - 10/31/12 10:18 PM

I kind of like zooms for my grab and go 5" Mak and SLT, but I have yet to look through one that is as sharp as a well corrected Ortho,
But I use RKE's which are (for those than dont know) are "Improved" Kelners, (Rank Kellner eyepieces). and only 3 elements.
You have to let us know how sharp they are Please!


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Re: New 16mm - 8mm Zoom with constant 66 field new [Re: Sarkikos]
      #5498640 - 10/31/12 10:57 PM

Quote:

Another high-end Zoom that requires an OCA or Barlow? Pfft...

I think I'll make do with my trusty Baader Zoom and other eyepieces as needed.

Mike




The Leica ASPH Zoom doesn't necessarily require the barlow in my f8 refractor, I still get a nice image in 90%+ of the FOV at 1X. But for faster scopes the barlow helps a lot, with any eyepiece. The beauty of it for me is my most-used focal lengths besides the 31T5 are at 10-5mm so the barlowed Leica is perfect. The advantages of having a zoom are many and obvious but to have one with nice eye relief that is every bit the equal of my XWs, maybe even crisper, and with an even larger FOV in the higher mags...


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Re: New 16mm - 8mm Zoom with constant 66 field new [Re: johnnyha]
      #5500029 - 11/01/12 10:02 PM

Quote:

Quote:

Another high-end Zoom that requires an OCA or Barlow? Pfft...

I think I'll make do with my trusty Baader Zoom and other eyepieces as needed.

Mike




The Leica ASPH Zoom doesn't necessarily require the barlow in my f8 refractor, I still get a nice image in 90%+ of the FOV at 1X. But for faster scopes the barlow helps a lot, with any eyepiece. The beauty of it for me is my most-used focal lengths besides the 31T5 are at 10-5mm so the barlowed Leica is perfect. The advantages of having a zoom are many and obvious but to have one with nice eye relief that is every bit the equal of my XWs, maybe even crisper, and with an even larger FOV in the higher mags...




Johnny, I am confusing myself more than ever! I took my TEC 160 FL F/7 out tonight mounted on a DM6 Alt/Az mount and proceeded to use the Leica ASPH with a T2-29 ring holding a Baader/Zeiss 2x Abbe Barlow onto the Leica's front end. Was looking at Albireo, M15 and M31. Also had my Baader Mark V binoviewer on the same objects with a whole host of Brandon pairs as well as 16mm and 10mm ZAOII's, 18mm BGAO's and a pair of 24mm Pans with my just received 1.25x Glaspath corrector in the Mark V's. Obviously, the magnifications were quite different but I was experimenting with all of the different views on the three objects before the Moon came up which it is now just beginning to brighten the sky so I called it at about 9:45 EDT. What continues to amaze me is how sharp the Leica ASPH zoom is and how tight the star points are in the longish refractor. OTOH, binocular views are just the bomb when looking at really large objects such as the Andromeda galaxy and her two companion galaxies. Since I had just received the 1.25x Glaspath corrector that had not originally come with the BV's due to being out of stock, I had to see what the wide field views were like.

Back to this original thead, I hope that Tammy is able to view through the Meopta zoom sometime soon to let us know how it stacks up? I can tell you that the Leica ASPH will be a very tough act to beat. It is a shame that I am essentially a conehead with a 56-57mm IPD that would never allow for binoviewing with the Leicas like Tammy is able to do. Bob


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Re: New 16mm - 8mm Zoom with constant 66 field new [Re: Bob S.]
      #5500181 - 11/01/12 11:43 PM

The Leica ASPH Zoom can't beat the views in the MkV binos Bob - but it re-invigorates my interest in mono-viewing. It is literally like having all three of my XWs in the diagonal but also everything inbetween. It's the perfect companion for the binos. There's no going back.

Every night I have tested the Leica Zoom out though, I have eventually stuck the binos in and gone "Woah! OK, now here we go...".


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Re: New 16mm - 8mm Zoom with constant 66 field new [Re: johnnyha]
      #5500422 - 11/02/12 05:30 AM

Quote:

The Leica ASPH Zoom can't beat the views in the MkV binos Bob - but it re-invigorates my interest in mono-viewing. It is literally like having all three of my XWs in the diagonal but also everything inbetween. It's the perfect companion for the binos. There's no going back.

Every night I have tested the Leica Zoom out though, I have eventually stuck the binos in and gone "Woah! OK, now here we go...".




Johnny, I had put a +1 and am totally rescinding it! This morning, Jupiter was really struting its stuff with a plethora of white ovals, the GRS and red dot below it in my 12.5" f/5 Zambuto/Starstructure. I initially was using the Mark V's with the 1.7 GPC and 24mm Pans. The views were nice but when I put my Leica ASPH zoom in coupled with a Baader/Zeiss 2x Abbe Ortho Barlow, Katie bar the door! The zoomed views were between 178x-358x. The Leica provided the best views of the planet this year.

I was going to take the 6.3" Apo out like I did last night but 12.5" shows so much more detail and color. The Leica hands down stole the show this morning. Bob

Edited by Bob S. (11/02/12 08:43 AM)


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sixela
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Re: New 16mm - 8mm Zoom with constant 66 field new [Re: Tamiji Homma]
      #5500819 - 11/02/12 12:07 PM

Quote:


Exaggeratedly, I feel like looking at flattened half sphere, center is closer and edge is farther.

Straight line keeps straight very well even at edge.




By the globe effect, the AMD and the fact straight lines look straight,depending on your eyesight I'd guess k=0.7-1 in http://www.holgermerlitz.de/globe/distortion.html .

You could derive it by comparing the real AFOV (measuring it with two eyes open, one looking at a ruler at known distance and the other at the field stop of the eyepiece) and the real TFOV.

But in a zoom it's not such a bad thing; after all it means more field at the outer zoom setting.


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Re: New 16mm - 8mm Zoom with constant 66 field new [Re: Bob S.]
      #5501973 - 11/03/12 05:27 AM

Quote:

Johnny, I had put a +1 and am totally rescinding it! This morning, Jupiter was really struting its stuff with a plethora of white ovals, the GRS and red dot below it in my 12.5" f/5 Zambuto/Starstructure. I initially was using the Mark V's with the 1.7 GPC and 24mm Pans. The views were nice but when I put my Leica ASPH zoom in coupled with a Baader/Zeiss 2x Abbe Ortho Barlow, Katie bar the door! The zoomed views were between 178x-358x. The Leica provided the best views of the planet this year.




Bob, since it's always fun to spend other people's money : how about additionally getting two Leica 22-7.3mm zooms for binoviewing. They are even less expensive than the Meopta zooms and they are available from Markus with 2" or 1.25" adapters. Their outer diameter is only 53mm.

They deliver AFOV's between 38 (at 22mm) up to 69 (at 7.3mm). The optical quality is from my experience every bit as good as the Leica ASPH zoom.

Andreas

@Sgt:
Quote:

I seriously think Markus Ludes owes you a Christmas present


I'm afraid he doesn't think so.

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Bob S.
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Re: New 16mm - 8mm Zoom with constant 66 field new [Re: andydj5xp]
      #5502122 - 11/03/12 09:38 AM

Andreas, I went to the German Leica website and was able to get a good translation of their instructions for the Leica 22-7.3mm zooms that are used with their spotting scope. It appears that it is continuously variable zoom. Without click stops, I wonder how one gets them to precisely the same magnification for binoviewing? I have inadvertently placed to different focal lengths into a binoviewer and the views are a hoot with something not being quite right I have no experience using zooms binocularly so this remains a real dilemna. Bob

Edited by Bob S. (11/03/12 10:13 AM)


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Re: New 16mm - 8mm Zoom with constant 66 field new [Re: Bob S.]
      #5502227 - 11/03/12 11:16 AM

Andreas, Not to derail this thread but I just received a Baader Herschel Wedge White Light filter with a 2" ep receptical and so put the wedge on my TEC 160 and then put in the Leica Vario ASPH zoom and OMG! I was able to zoom in on our closest star at just the right magnification for the conditions and the presenting sunspots. If you do not have one of these filters, you MUST get one and place it in your TEC 140 and look at the Sun with your Leica zoom. The views are priceless. My bank account is running on fumes Bob

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Re: New 16mm - 8mm Zoom with constant 66 field new [Re: Bob S.]
      #5502436 - 11/03/12 01:47 PM

Quote:

Andreas, I went to the German Leica website and was able to get a good translation of their instructions for the Leica 22-7.3mm zooms that are used with their spotting scope. It appears that it is continuously variable zoom. Without click stops, I wonder how one gets them to precisely the same magnification for binoviewing? I have inadvertently placed to different focal lengths into a binoviewer and the views are a hoot with something not being quite right I have no experience using zooms binocularly so this remains a real dilemna. Bob




Bob, from earlier discussions I've learned that it's easy to choose the same magnifications with two zooms in a bino.

If you have a look into the ASPH review I've described my method for easily choosing the wanted focal length: "The white markings seen on the eyepiece body are little pieces cut from a nylon cable binder and glued onto small strips of transparent selfadhesive tape. They enable "feeling" the chosen magnification and are placed such that they give with my TEC140 magnifications of 60x, 80x, and 100x unbarlowed, and the corresponding magnifications multiplied with the barlow factors. Thus click-stops aren't missed.". The 22.3-7.3mm zoom can be prepared similarly.

The inscriptions on the zoom's body and the corresponding focal lengths are as follows:
20x=22mm; 30x=14.7mm; 40x=11mm; 50x=8.1mm; 60x=7.3mm

Thanks for the Herschel wedge advice. I'm using this scheme since 2005. Simply magnificent.

Andreas


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Re: New 16mm - 8mm Zoom with constant 66 field new [Re: andydj5xp]
      #5505048 - 11/05/12 07:53 AM

Quote:

Quote:

Andreas, I went to the German Leica website and was able to get a good translation of their instructions for the Leica 22-7.3mm zooms that are used with their spotting scope. It appears that it is continuously variable zoom. Without click stops, I wonder how one gets them to precisely the same magnification for binoviewing? I have inadvertently placed to different focal lengths into a binoviewer and the views are a hoot with something not being quite right I have no experience using zooms binocularly so this remains a real dilemna. Bob




Bob, from earlier discussions I've learned that it's easy to choose the same magnifications with two zooms in a bino.

If you have a look into the ASPH review I've described my method for easily choosing the wanted focal length: "The white markings seen on the eyepiece body are little pieces cut from a nylon cable binder and glued onto small strips of transparent selfadhesive tape. They enable "feeling" the chosen magnification and are placed such that they give with my TEC140 magnifications of 60x, 80x, and 100x unbarlowed, and the corresponding magnifications multiplied with the barlow factors. Thus click-stops aren't missed.". The 22.3-7.3mm zoom can be prepared similarly.

The inscriptions on the zoom's body and the corresponding focal lengths are as follows:
20x=22mm; 30x=14.7mm; 40x=11mm; 50x=8.1mm; 60x=7.3mm

Thanks for the Herschel wedge advice. I'm using this scheme since 2005. Simply magnificent.

Andreas




Andreas, You have not steered any of us wrong in your very detailed experiences with zooms. I just ordered the 22.3-7.3mm Leica zooms for binoviewing in my two BV's with 1.25" adapters. I think I will be able to sell a lot of ep's that the three zooms have replaced. We are talking on the order of almost 20 eyepieces that can be replaced by three. That is an unbelievable accomplishment. A great testament to German engineering. Bob


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Re: New 16mm - 8mm Zoom with constant 66 field new [Re: Bob S.]
      #5524315 - 11/17/12 12:46 PM

Any astro views through this eyepiece yet?

Brad


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Sarkikos
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Re: New 16mm - 8mm Zoom with constant 66 field new [Re: BradleyB]
      #5524335 - 11/17/12 01:03 PM



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Re: New 16mm - 8mm Zoom with constant 66 field new [Re: Sarkikos]
      #5524535 - 11/17/12 03:02 PM

*pops a can of coke open and grab some of Mike's popcorn*



Yeah, I'm curious, too.


Clear skies!
Thomas, Denmark

Edited by Astrojensen (11/17/12 03:02 PM)


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Re: New 16mm - 8mm Zoom with constant 66 field new [Re: Astrojensen]
      #5544811 - 11/28/12 11:24 PM

Tammy,

From the photo you posted of this it looks like the bayonet flange on the bottom is greater than 1 1/4" across. Can you measure and confirm this measurement?

If it is larger, one would not be able to make a 1 1/4" adapter unless it is below the bayonet flange, similar to what you did by adding a 1 1/4" adapter to the bottom of your 2" adapter. This would make it much harder to use in a 1 1/4" diagonal or binoviewers for most scopes.

Thanks,
Brad


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Tamiji Homma
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Re: New 16mm - 8mm Zoom with constant 66 field new [Re: BradleyB]
      #5544820 - 11/28/12 11:32 PM

Quote:

From the photo you posted of this it looks like the bayonet flange on the bottom is greater than 1 1/4" across. Can you measure and confirm this measurement?




Hi Brad,

The diameter of the bayonet flange is 33.80mm. So it is larger than 1.25" (31.75mm).

Tammy


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astrodon
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Re: New 16mm - 8mm Zoom with constant 66 field new [Re: Tamiji Homma]
      #5544912 - 11/29/12 01:21 AM

what are the specs on the 20-70x in astronomical use?

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BradleyB
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Re: New 16mm - 8mm Zoom with constant 66 field new [Re: Tamiji Homma]
      #5545212 - 11/29/12 10:04 AM

Thank you Tammy.

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Re: New 16mm - 8mm Zoom with constant 66 field new [Re: Tamiji Homma]
      #5554822 - 12/04/12 11:09 PM

I confirmed with APM that their 1 1/4" adapter extends beyond the bottom of the eyepiece. That will make it hard for focusing in 1 1/4" mode. I could use it in 2" mode so it would not be as much of an issue for me. I'm just hoping it does well in astro viewing. If so, I will be seriously tempted to try it out.

Brad

Quote:

Quote:

From the photo you posted of this it looks like the bayonet flange on the bottom is greater than 1 1/4" across. Can you measure and confirm this measurement?




Hi Brad,

The diameter of the bayonet flange is 33.80mm. So it is larger than 1.25" (31.75mm).

Tammy




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Tamiji Homma
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Re: New 16mm - 8mm Zoom with constant 66 field new [Re: BradleyB]
      #5554949 - 12/05/12 12:58 AM

Hi Brad,

Yes, you need ample inward focus distance with 1.25" mode.

Here is photo, Baader #T2-14 (T-thread ->1.25" nosepiece) is attached to bottom of 2" adapter:


#T2-14 is removed:


Tammy


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mkothe
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Re: New 16mm - 8mm Zoom with constant 66 field new [Re: Tamiji Homma]
      #5556632 - 12/05/12 11:00 PM

How are the views?

Michael


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Sarkikos
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Re: New 16mm - 8mm Zoom with constant 66 field new [Re: mkothe]
      #5557178 - 12/06/12 09:59 AM

Yes, that's what I'm waiting to hear ... especially when used in an f/5 or so Dob.

Mike


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Re: New 16mm - 8mm Zoom with constant 66 field new [Re: Sarkikos]
      #5581546 - 12/20/12 10:12 PM

Still no views through this eyepiece under the stars?

Brad


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Sarkikos
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Re: New 16mm - 8mm Zoom with constant 66 field new [Re: BradleyB]
      #5581552 - 12/20/12 10:16 PM

I think I'll keep my Baader Zoom.

Mike


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Re: New 16mm - 8mm Zoom with constant 66 field new [Re: Sarkikos]
      #5594890 - 12/29/12 06:45 PM

I'm also looking forward to hearing - but I guess full moon at the moment means that dark transparent night for the DSO contrast comparison is still a little while off. I'm contemplating buying one or other of the Leica ASPH or Meopta so it would be a big deal if they are similar in contrast - or to know the trade-offs; many thanks in advance Tammy.

Clear skies
Niels


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Sarkikos
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Re: New 16mm - 8mm Zoom with constant 66 field new [Re: Niels2011]
      #5594898 - 12/29/12 06:53 PM

I've since ordered and received a Baader 2.25x Barlow for my Baader Zoom. If I ever take a chance on one of these high-end Zooms, I'll see if and how well the Baader Barlow works with it.

Mike


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GeneT
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Re: New 16mm - 8mm Zoom with constant 66 field new [Re: Astrojensen]
      #5595205 - 12/29/12 09:59 PM

Time for a review, with some A B comparisons with other eyepieces.

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Sarkikos
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Re: New 16mm - 8mm Zoom with constant 66 field new [Re: GeneT]
      #5595791 - 12/30/12 10:04 AM

... including the Baader Hyperion Zoom with a good Barlow.

Mike


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Tamiji Homma
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Re: New 16mm - 8mm Zoom with constant 66 field new [Re: Niels2011]
      #5596179 - 12/30/12 01:30 PM

Quote:

I'm also looking forward to hearing - but I guess full moon at the moment means that dark transparent night for the DSO contrast comparison is still a little while off. I'm contemplating buying one or other of the Leica ASPH or Meopta so it would be a big deal if they are similar in contrast - or to know the trade-offs; many thanks in advance Tammy.

Clear skies
Niels




Hi Niels,

I haven't done side-by-side comparison yet. One thing that I can tell you for sure is that Meopta Zoom has too much of AMD (Angular Magnification Distortion) to minimize rectangular distortion. In other words, you see larger image on axis and smaller toward edge. Scanning star field may make you feel dizzy.

You can see it very clearly when you observe double star, good separation on axis, tighter toward edge. I guess it is designed for spotting scope, suitable for more terrestrial target than astronomical target.

However, other characteristics (lack of scatter, suppression of unwanted reflection etc) are superb as far as I can tell. It rivals to Leica ASPH Zoom.

So my recommendation is that if you are using it for night sky observation in general, Leica ASPH Zoom is a better choice. If your interest is mainly on axis image quality of planetary/lunar and want to take advantage of variable focal length of zoom eyepiece, I think that Meopta is a fine choice.

Currently, Meopta Zoom is screwed on top of Baader T2 Prism Diagonal as my grab-n-go setup. I am trying to resolve Trapezium A-F 6 stars with 60mm f/16 refractor, yielding about 121x-61x.



Tammy


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Peter Natscher
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Re: New 16mm - 8mm Zoom with constant 66 field new [Re: Tamiji Homma]
      #5596278 - 12/30/12 02:41 PM

To me, the Meopta's outwardly flairing bottom, meant for its use on another scope design, is a deal breaker. It's fairing bottom makes it as large at the Leica's overall OD, negating any advantage over the Leica size-wise.

Quote:

It is finally here. It took longer than usual.
It was shipped on Oct 16th, arrived today on Oct 29th.

Just took regular snapshot. I did take a quick peek at terrestrial view. Good eye relief, comfortable, twist up eyeguard. The tapered eyepiece shoulder is about 60mm in diameter. I think I can use those in binoviewer.

Meopta with APM 2" M42 adapter on left, Leica with Starlight Instruments' adapter on right:


Eye lens:


Field lens:


More later when I get a chance to look through at night.

Tammy




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Sarkikos
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Re: New 16mm - 8mm Zoom with constant 66 field new [Re: Tamiji Homma]
      #5596330 - 12/30/12 03:13 PM

Tammy,

Quote:

So my recommendation is that if you are using it for night sky observation in general, Leica ASPH Zoom is a better choice. If your interest is mainly on axis image quality of planetary/lunar and want to take advantage of variable focal length of zoom eyepiece, I think that Meopta is a fine choice.




Very nice summation to keep in mind when considering these two zooms. Thanks.

Mike


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Sarkikos
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Re: New 16mm - 8mm Zoom with constant 66 field new [Re: Peter Natscher]
      #5596340 - 12/30/12 03:17 PM

Peter,

Quote:

To me, the Meopta's outwardly flairing bottom, meant for its use on another scope design, is a deal breaker. It's fairing bottom makes it as large at the Leica's overall OD, negating any advantage over the Leica size-wise.




Is the flaring bad enough to adversely affect using a pair of Meopta in a binoviewer for planet / lunar observation?

Mike


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Niels2011
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Re: New 16mm - 8mm Zoom with constant 66 field new [Re: Tamiji Homma]
      #5596562 - 12/30/12 04:58 PM

Hi Tammy,

Thanks that's very helpful. Hmm food for thought - my observing is a lot of deep sky though I don't scan much, more star hopping and then lots of squinting and jiggling. I'm also wondering about Markus Ludes recommendation of the Meopta for f5 newtonians - is it that much better at the edge than the Leica in a Newtonian? Many thanks.

Niels


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Mark9473
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Re: New 16mm - 8mm Zoom with constant 66 field new [Re: Tamiji Homma]
      #5596631 - 12/30/12 05:46 PM

Quote:

If your interest is mainly on axis image quality of planetary/lunar and want to take advantage of variable focal length of zoom eyepiece, I think that Meopta is a fine choice.




Do you feel the AMD is bothersome in lunar observing, Tammy?


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Tamiji Homma
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Re: New 16mm - 8mm Zoom with constant 66 field new [Re: Niels2011]
      #5596964 - 12/30/12 09:38 PM

Hi Niels,

I can't confirm Markus' findings since I don't own f/5 Newtonian scope. Lately, I am too lazy (and busy) to go to local star party to look through big fast Newt.

But I can try it on fast f/5.5 and f/4 refractor, though.

PS: I don't get dizzy with Meopta when I sweep star field

Tammy


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Tamiji Homma
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Re: New 16mm - 8mm Zoom with constant 66 field new [Re: Mark9473]
      #5596972 - 12/30/12 09:44 PM

Quote:

Do you feel the AMD is bothersome in lunar observing, Tammy?





Hi Mark,

Nope. I don't get bothered by AMD observing lunar but once you know it is there, you notice it. That's all.

I didn't mention it but I noticed Meopta has a little tricky eye placement issue as most long eye relief eyepieces do. I wish they had a few millimeter more twist up eyepiece height.

Tammy


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Niels2011
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Re: New 16mm - 8mm Zoom with constant 66 field new [Re: Tamiji Homma]
      #5597386 - 12/31/12 04:41 AM

Hi Tammy,

Haha, yes I was worried about dizziness!! But I know what you mean about the rolling ball effect. Thanks for your response. Yes, when you get a chance it would be very helpful to know your observations of how the Meopta compares to the edge of the Leica on a fast scope.

Niels


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Niels2011
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Re: New 16mm - 8mm Zoom with constant 66 field new [Re: Tamiji Homma]
      #5601104 - 01/02/13 11:38 AM

Hi Tammy,
I've now made my choice (Leica for my uses after weighing the various trade-offs - many thanks for your useful information), so no need to do further checks on my account, but I expect your further posts will be of great interest to lots of others based on the number of views this thread's been getting.

Best wishes
Niels


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Re: New 16mm - 8mm Zoom with constant 66 field new [Re: Niels2011]
      #5612923 - 01/08/13 11:28 PM

I bought one...

The Meopta has very nice eye relief and is narrower than the Hyperion zoom, and very comfortable ergonomically. It's a bit stiff on the zoom but seems to be well made. The focus point is only a few mm in from the Hyperion zoom, assuming a 2" adapter. The aFOV seems to be accurate at 66 deg throughout the zoom. It seems to be nearly perfectly parfocal.

I had high hopes for this and a little bit of AMD does not bother me. But, unfortunately, it has a LOT of AMD, it's like looking into a marble. I can't imagine how anyone would accept it in a spotting scope. The Hyperion zoom is completely flat by comparison.

Since I would still have to make an adapter for it to view the sky, and I'm not likely to see the sky soon anyway here,

I returned it.

Brad


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ibase
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Re: New 16mm - 8mm Zoom with constant 66 field new [Re: BradleyB]
      #5614795 - 01/10/13 01:02 AM

Quote:

I bought one...

The Meopta has very nice eye relief and is narrower than the Hyperion zoom, and very comfortable ergonomically. It's a bit stiff on the zoom but seems to be well made. The focus point is only a few mm in from the Hyperion zoom, assuming a 2" adapter. The aFOV seems to be accurate at 66 deg throughout the zoom. It seems to be nearly perfectly parfocal.

I had high hopes for this and a little bit of AMD does not bother me. But, unfortunately, it has a LOT of AMD, it's like looking into a marble. I can't imagine how anyone would accept it in a spotting scope. The Hyperion zoom is completely flat by comparison.

Since I would still have to make an adapter for it to view the sky, and I'm not likely to see the sky soon anyway here,

I returned it.




If the Meopta zoom isn't a lot better than the Baader Hyperion zoom, what are its chances of taking off (being more expensive)?

Best,


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Sarkikos
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Re: New 16mm - 8mm Zoom with constant 66 field new [Re: ibase]
      #5614989 - 01/10/13 07:46 AM

You get what you pay for ... whether or not it's really worth the price.

So far I've steered away from both these high-end Zooms, not only because of the high-end price, but the excessive fiddling and finessing that's apparently required to make them work well. The Baader Hyperion Zoom just works!

Mike


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ibase
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Re: New 16mm - 8mm Zoom with constant 66 field new [Re: Sarkikos]
      #5616414 - 01/10/13 10:32 PM

Quote:

The Baader Hyperion Zoom just works!




Like you said!

Best,


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BradleyB
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Re: New 16mm - 8mm Zoom with constant 66 field new [Re: ibase]
      #5616529 - 01/11/13 12:04 AM

Yes I've had my gen 1 Hyperion zoom for some time and it has always performed nicely. If it had slightly more eye relief and wider field of view at the longer focal lengths it would be perfect. I just keep looking for that little extra.

Brad


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Re: New 16mm - 8mm Zoom with constant 66 field new [Re: BradleyB]
      #5616710 - 01/11/13 05:28 AM

Agree, a wider field at the longer focal lengths is ideal, although the eye relief of the Hyperion zoom is comfortable enough for me, even for extended viewing sessions. My dream zoom is a 4-36mm with a 100-deg AFoV across the entire focal range.

Best,


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Re: New 16mm - 8mm Zoom with constant 66 field new [Re: Astrojensen]
      #5617682 - 01/11/13 06:02 PM

Sorry to hear about the Meopta's AMD. Guess I'll cross this one off my list. Watching planets or lunar features get bigger and smaller as they dift across the field of view of my scopes that don't track would be a bit off putting. My Hyperion 2 Zoom compares well to my XWs and such with good seeing but lags behind with better. David

Edited by dscarpa (01/11/13 06:06 PM)


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Sarkikos
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Re: New 16mm - 8mm Zoom with constant 66 field new [Re: dscarpa]
      #5617691 - 01/11/13 06:07 PM

I use my Baader Zoom mostly for DSO at my dark site and for grab-n-go views of the Moon and planets here at home. When I'm really serious about planet/lunar, I take out the binoviewer.

Mike


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