Sarkikos
Postmaster
Reged: 12/18/07
Loc: Suburban Maryland, USA
|
Re: 0.965" Eyepieces
[Re: Sasa]
#5324522 - 07/19/12 07:12 AM
|
Edit
|
Reply
|
Quote |
Quick Reply
|
|
|
Sasa,
I have a CZJ H-25 and H-16. I bought them for my long achromats, because I read that they help to correct the lingering CA in such scopes. My intention was to use them for quick, monoviewed grab-n-go looks at the Moon, bright planets and doubles, through my 70mm f/12.9 achro, especially. I avoid binoviewing small aperture scopes such as my achros because of balance and light transmission issues.
But I never thought of them as planetary eyepieces worthy of obtaining pairs for a binoviewer. They are CZJs, but are still Huygens after all. I think a decent pair of orthos or Brandons - or XOs if you have the gelt - would be much better for that purpose. Also, I don't think the CZJ H's would do as well in a Newt or Mak.
Mike
|
Jim Curry
Pooh-Bah
Reged: 10/29/07
Loc: STL
|
Re: 0.965" Eyepieces
[Re: Sasa]
#5324576 - 07/19/12 08:19 AM
|
|
Edit
|
Reply
|
Quote |
Quick Reply
|
|
|
Sasa:
Great collections of CZJ's guys. One of these days I'll get my eyecandy posted.
What size is that ATC? Is it an astronomical eyepiece or microscope? Impressions?
Thanks.
Jim
|
Sasa
sage
Reged: 11/03/10
Loc: Ricany, Czech Republic
|
Re: 0.965" Eyepieces
[Re: Sarkikos]
#5325079 - 07/19/12 01:39 PM
|
|
Edit
|
Reply
|
Quote |
Quick Reply
|
|
|
Mike, sorry for the confusion. The part about planets was concerning only the O-6 (now I have two O-6 and O-10). The second H25 came for free with given C63/840. I agree, those CZJ Huygens eyepieces are good for DSO. On the Moon they exhibit some visible lateral color.
|
Sasa
sage
Reged: 11/03/10
Loc: Ricany, Czech Republic
|
Re: 0.965" Eyepieces
[Re: Jim Curry]
#5325095 - 07/19/12 01:49 PM
|
|
Edit
|
Reply
|
Quote |
Quick Reply
|
|
|
Jim, the two small ones are astronomical 0.965". The 8mm one is Erfle (I believe) and I have it from youth. It shows nice and contrast views of Moon with AS80/1200. The other one is 20mm Kellner. I got it second handed for a few bucks. /it is quite nice as well. The big one is 44mm threaded Kellner with 40mm focal length. This one is new, I ordered it last year. I thought that I would not find original CZJ H-40. It is impressive piece of glass, very nicely done mechanically as well. The low power views of Moon is completely diffent level from the CZJ H-40. It is also perfect for DSO. The only drawback is that it is more heavy than H40 and it is not parfocal with CZJ orthos (which is not practical if I use it use it with CZJ turret).
|
Sarkikos
Postmaster
Reged: 12/18/07
Loc: Suburban Maryland, USA
|
Re: 0.965" Eyepieces
[Re: Sasa]
#5325128 - 07/19/12 02:09 PM
|
|
Edit
|
Reply
|
Quote |
Quick Reply
|
|
|
Sasa,
Quote:
Mike, sorry for the confusion. The part about planets was concerning only the O-6 (now I have two O-6 and O-10).
Yes, those should be very nice for planets! 
Quote:
The second H25 came for free with given C63/840. I agree, those CZJ Huygens eyepieces are good for DSO. On the Moon they exhibit some visible lateral color.
Do you use the CZJ H's in any achromats? I had heard that in f/10 or slower achros, a decent Huygens eyepiece will tend to correct the lingering chroma. My intention was to use them mostly in my 70mm f/12.9 for quick look-sees at the Moon and planets. (I have not gotten a chance to try them out yet.)
Actually, I had not thought about the CZJ H's for DSO, besides maybe double stars in the achromats. You would think that a simple 2-element design would increase light transmission for the faint fuzzies, but I believe there are other problems in Huygens that make them not so good for DSO, especially in fast Newts.
Mike
|
Sasa
sage
Reged: 11/03/10
Loc: Ricany, Czech Republic
|
Re: 0.965" Eyepieces
[Re: Sarkikos]
#5325291 - 07/19/12 03:32 PM
|
|
Edit
|
Reply
|
Quote |
Quick Reply
|
|
|
Mike, yes I do use the Huygens eyepieces with achromats. I use H-40 with AS80/1200 (technically semi-apo) and H25 with C63/840. As I was saying, I see some lateral color with those eyepieces (the Moon's edge shows some coloring if the Moon is little bit of axis). I did not notice any improvement in color correction of the objective itself - not that I was looking for it on purpose. I don't notice any color error at this magnification also with other long focus eyepieces. I believe that with such small magnifications I would not be able to see it at all. The chromatic aberration is hardly visible at 240x (on the Moon, in the case of AS80/1200), and some is visible around Vega in C63/840 at about 100x. Still I like to use those long Huygens eyepieces on Moon. I don't know why, they give the Moon kind of silver patina - like the grainy old Moon photos. May be it was not the eyepiece but just the phase of the Moon responsible for it. But I never noticed it for example in ATC 40mm Kellner which gives very smooth view with very nice contrast and deep shades of gray.
Concerning DSO and Huygens eyepieces. I don't think they are special but for me they provide maximum FOV. So I just use what I have and what is practical: H40 in AS80/1200 and H25 in C63/840. In any case they provide really very fine views. For example, I used on DSO mostly H25 (34x) during the first night with C63/840: see here. I was really very pleased with the view. So these eyepieces are definitely quite usable for DSO.
Edited by Sasa (07/19/12 03:44 PM)
|
sgorton99
Carpal Tunnel
Reged: 04/30/08
Loc: Wisconsin, Madison
|
Re: 0.965" Eyepieces
[Re: Sasa]
#5327465 - 07/20/12 08:54 PM Attachment (19 downloads)
|
|
Edit
|
Reply
|
Quote |
Quick Reply
|
|
|
Well, you succeeded in getting me to take a better picture of my Uni EPs.
|
bob midiri
Carpal Tunnel
Reged: 06/17/04
Loc: pa 19320
|
Re: 0.965" Eyepieces
[Re: Jaimo!]
#5327971 - 07/21/12 09:54 AM Attachment (16 downloads)
|
|
Edit
|
Reply
|
Quote |
Quick Reply
|
|
|
Recently picked up this set of Vixen Ortho's . Not sure of the quality haven't tried them out. How to they compare to Abbe ortho's
|
Jaimo!
Pooh-Bah
Reged: 10/11/07
Loc: Exit 135 / 40° North
|
Re: 0.965" Eyepieces
[Re: Steve_M_M]
#5340683 - 07/28/12 09:23 PM
|
|
Edit
|
Reply
|
Quote |
Quick Reply
|
|
|
Quote:
My Collection at its peak. Nikon, Goto, Nishimura,Takahashi
I was just reviewing this thread, that's a phenomenal set... do you have any more detailed photos? I would love to see more!
Jaimo!
|
jrbarnett
Eyepiece Hooligan
Reged: 02/28/06
Loc: Petaluma, CA
|
Re: 0.965" Eyepieces
[Re: Jaimo!]
#5340845 - 07/28/12 11:03 PM
|
|
Edit
|
Reply
|
Quote |
Quick Reply
|
|
|
Invasion from the east! BANZAI!
Ja? Do vat?
- Jim
|
Jaimo!
Pooh-Bah
Reged: 10/11/07
Loc: Exit 135 / 40° North
|
Re: 0.965" Eyepieces
[Re: jrbarnett]
#5340846 - 07/28/12 11:05 PM
|
|
Edit
|
Reply
|
Quote |
Quick Reply
|
|
|
I knew you'd come around Barnett!
Jaimo!
|
iceblaze
Pooh-Bah
Reged: 10/15/11
Loc: 33.9° N, 118.4° W Lawndale, CA
|
Re: 0.965" Eyepieces
[Re: Jaimo!]
#5340911 - 07/28/12 11:54 PM
|
|
Edit
|
Reply
|
Quote |
Quick Reply
|
|
|
Jim is my hero.
Here's something fun I learned today (Thanks David E!)
1. 
2. 
3. 
4. 
5. 
6. 
Works for all UO eyepieces.* (see below)
-James
Edited by iceblaze (07/31/12 02:04 AM)
|
Nuphy
super member
Reged: 04/23/08
Loc: Newport News, VA
|
Re: 0.965" Eyepieces
[Re: jrbarnett]
#5341520 - 07/29/12 11:48 AM
|
|
Edit
|
Reply
|
Quote |
Quick Reply
|
|
|
Quote:
Invasion from the east! BANZAI!
- Jim
Jim,
Did you obtain the Taks together with a scope or separately?
|
BillP
Postmaster
Reged: 11/26/06
Loc: Vienna, VA
|
Re: 0.965" Eyepieces
[Re: Jaimo!]
#5341567 - 07/29/12 12:32 PM Attachment (14 downloads)
|
|
Edit
|
Reply
|
Quote |
Quick Reply
|
|
|
Just a few. Not just in case, but more just because
|
Jaimo!
Pooh-Bah
Reged: 10/11/07
Loc: Exit 135 / 40° North
|
Re: 0.965" Eyepieces
[Re: iceblaze]
#5342417 - 07/29/12 09:29 PM
|
|
Edit
|
Reply
|
Quote |
Quick Reply
|
|
|
iceblaze,
Are the field stops in the UO barrels? You may be causing some image degradation in the outer edges depending on the field stop differences, but you could open up a lot of eyepieces to be used.
Good job,
Jaimo!
|
jrbarnett
Eyepiece Hooligan
Reged: 02/28/06
Loc: Petaluma, CA
|
Re: 0.965" Eyepieces
[Re: Nuphy]
#5342437 - 07/29/12 09:49 PM
|
|
Edit
|
Reply
|
Quote |
Quick Reply
|
|
|
Hi Nuphy.
I bought the boxed set used on Astromart. It includes a 7mm, 12.5mm, 18mm and 25mm. I've since added the 2.8mm and 4mm Hi Orthos, and the 32mm MC Erfle. I'm debating whether to finish the set (with a 5mm and 9mm) or sell the set as I have the full set of 0.965" Pentax SMCs (with also a 3.8mm XP thrown in, but not pictured).
Regards,
Jim
|
iceblaze
Pooh-Bah
Reged: 10/15/11
Loc: 33.9° N, 118.4° W Lawndale, CA
|
Re: 0.965" Eyepieces
[Re: Jaimo!]
#5342488 - 07/29/12 10:22 PM
|
|
Edit
|
Reply
|
Quote |
Quick Reply
|
|
|
Quote:
iceblaze,
Are the field stops in the UO barrels? You may be causing some image degradation in the outer edges depending on the field stop differences, but you could open up a lot of eyepieces to be used.
Good job,
Jaimo!
Looks like Mr. Ed Z answered the question in this post:
http://www.cloudynights.com/ubbthreads/printthread.php?Board=Eyepieces&main=5328274&type=post
So yea, nothing in the barrels up to 12.5mm (I only own 4-9)
-James
|
Jaimo!
Pooh-Bah
Reged: 10/11/07
Loc: Exit 135 / 40° North
|
Re: 0.965" Eyepieces
[Re: iceblaze]
#5342569 - 07/29/12 11:17 PM
|
|
Edit
|
Reply
|
Quote |
Quick Reply
|
|
|
Quote:
Quote:
iceblaze,
Are the field stops in the UO barrels? You may be causing some image degradation in the outer edges depending on the field stop differences, but you could open up a lot of eyepieces to be used.
Good job,
Jaimo!
Looks like Mr. Ed Z answered the question in this post:
http://www.cloudynights.com/ubbthreads/printthread.php?Board=Eyepieces&main=5328274&type=post
So yea, nothing in the barrels up to 12.5mm (I only own 4-9)
-James
That seems answers my question... 
Thanks,
Jaimo!
|
David E
Post Laureate
Reged: 05/25/06
Loc: North Carolina
|
Re: 0.965" Eyepieces
[Re: iceblaze]
#5343985 - 07/30/12 06:43 PM
|
|
Edit
|
Reply
|
Quote |
Quick Reply
|
|
|
Quote:
Here's something fun I learned today (Thanks David E!)
-James
I almost bought that eyepiece from you just to get the barrel. But I thought I'd play fair and let you know it fit your orthos.  I wish someone would make and market these barrels as according to my experimentation they fit a wide variety of 4 and 5 element eyepieces. For example:
-Vixen NPL Plossls
-Meade 4000 series Plossls, modern design (maybe, depending on country of origin).
-Meade 3000 series Plossls modern design
-Meade 4000 series 13.8 and 18mm SWA's modern design
-Astro Tech Series 6 wide angle ep's
-Just about any GSO-made Plossl, i.e. if it looks like a GSO...
-Orion Serius Plossls
Note that I'm only saying the barrel will fit, not that it's appropriate to use a .965" barrel on any of those eyepieces in particular. However, in most cases it should work, at least in focal lengths below 20mm. Also note that the Celestron Black/Orange Plossls those barrels come on are actually very good eyepieces themselves, so you may not really be gaining anything as far as image quality. I havn't tried them yet, but I want to try the Astro Tech Series 6 on my classic refractors with the .965" focusers. In theory I should get a sharp to the edge wide field. Oh, and one eyepiece series I WISH those .965" barrels would fit: my Televue Plossls!
|
Previous
Index
Next
Threaded
