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Anonymous
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Zoom eye pieces with BV
      #282403 - 12/15/04 06:31 PM

Would the Pentax Waterproof & Fogproof 8.0-24.0mm Zoom Eyepieces be good with the BV? Thinking a set of good zooms would be just as good as a pocket full of primes. They cost $370+ each and I admit the dollar value is all I have to go on. Newbe.

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Anonymous
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Re: Zoom eye pieces with BV new [Re: ]
      #282832 - 12/16/04 07:33 AM

The Pentax Zoom is not a click stop Zoom. It would be difficult to exactly match both eyepieces at the same power at the same time. This would make merging the images painful.

I am not saying this cannot be done, but I think there might be better options out there.

BTW. I owned and sold a single Pentax zoom. I loved it except for operating the zoom in cold weather. It was so stiff that I was afraid I might be breaking something.

Don Durbin


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Joe Ogiba
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Reged: 02/14/02
Posts: 5446
Loc: NJ USA
Re: Zoom eye pieces with BV new [Re: ]
      #282935 - 12/16/04 09:34 AM

You would have to have about a 70mm IPD to use the Pentax 8-24mm zoom in a binoviewer since they are about 69mm in diameter.


--------------------
Pentax PF-80ED,Meade 102ED APO,Orion EON 72,120ST
Apex 127,C6 XLT,CR150,C9.25,XT10 ,Celestron Regal 100 F-ED, CT152
Zeiss 7x42 FL,Canon 10x42L IS WP,15x50 IS
12x36 IS II , Pentax 8x32 ED
Garrett Optical 28x110 HD-WP Signature Series
Oberwerk BT-80 45, Apogee RA-88-SA
Denk II Power x Switch binoviewer w/13mm Ethos, 20mm Pentax XW's, 20mm Widescan III's.
21mm Ethos,17mm Ethos, 22mm Nagler, 40mm Pentax XW, 14mm Pentax XL, 5.2mm Pentax XL, 8-24mm Pentax XL Zoom, 31mm Axiom LX
Member #17


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southmike
Carpal Tunnel


Reged: 11/22/04
Posts: 2844
Loc: Fayetteville, NC
Re: Zoom eye pieces with BV new [Re: Joe Ogiba]
      #283332 - 12/16/04 03:22 PM

what about telvue or meade's 4000 series,
or any other zooms?

--------------------
group scope pic
my refractors
LX200 10"-St120
LX200 8" f6.3-Orion 80ed
LX200 8" f10-Orion 90 Mak setup pic
Meade 102ED LXD650
Sky Watcher 100 ED Triplet prototype
Nexstar 5
etx125
etx70's


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Joe Ogiba
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Reged: 02/14/02
Posts: 5446
Loc: NJ USA
Re: Zoom eye pieces with BV new [Re: southmike]
      #283404 - 12/16/04 04:31 PM

The new Pentax SMC 6.5-19.5mm XF Series Zoom is much smaller than the 8-24mm Pentax zoom.
http://www.adorama.com/PXZXF.html

--------------------
Pentax PF-80ED,Meade 102ED APO,Orion EON 72,120ST
Apex 127,C6 XLT,CR150,C9.25,XT10 ,Celestron Regal 100 F-ED, CT152
Zeiss 7x42 FL,Canon 10x42L IS WP,15x50 IS
12x36 IS II , Pentax 8x32 ED
Garrett Optical 28x110 HD-WP Signature Series
Oberwerk BT-80 45, Apogee RA-88-SA
Denk II Power x Switch binoviewer w/13mm Ethos, 20mm Pentax XW's, 20mm Widescan III's.
21mm Ethos,17mm Ethos, 22mm Nagler, 40mm Pentax XW, 14mm Pentax XL, 5.2mm Pentax XL, 8-24mm Pentax XL Zoom, 31mm Axiom LX
Member #17


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Anonymous
Unregistered




Re: Zoom eye pieces with BV new [Re: Joe Ogiba]
      #283456 - 12/16/04 05:15 PM

What about the Tele Vue Zoom 8.0-24.0mm Eyepiece? It looked smaller. I was thinking of two of these zooms and then a pair of Meade Series 5000 6.7mm Ultra Wide Angle Eyepiece for a wi8de view. Figure that should be a good starter set unless there is something I'm missing. I'll go look at those Pentax.

Edited by Christian (12/16/04 05:21 PM)


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Ken....
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Reged: 01/22/04
Posts: 1375
Loc: Nashua, NH, USA
Re: Zoom eye pieces with BV new [Re: ]
      #283744 - 12/16/04 10:26 PM

I used to use the TeleVue 8-24mm Click Stop zooms in my Denks.
They worked well. I got rid of them because of the smaller FOV at lower powers.

--------------------
Ken....


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Joe Ogiba
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Re: Zoom eye pieces with BV new [Re: Ken....]
      #284025 - 12/17/04 09:48 AM

Quote:

I got rid of them because of the smaller FOV at lower powers.




That is why I use the maximum FOV eyepieces (20mm Pentax XW,16mm Nagler,20mm Widesacn III 84) in my Denk II and use the PowerX Switch to go to high power with up to a 6x using 2x PowerX Switch and 3x Denk multiplier.

--------------------
Pentax PF-80ED,Meade 102ED APO,Orion EON 72,120ST
Apex 127,C6 XLT,CR150,C9.25,XT10 ,Celestron Regal 100 F-ED, CT152
Zeiss 7x42 FL,Canon 10x42L IS WP,15x50 IS
12x36 IS II , Pentax 8x32 ED
Garrett Optical 28x110 HD-WP Signature Series
Oberwerk BT-80 45, Apogee RA-88-SA
Denk II Power x Switch binoviewer w/13mm Ethos, 20mm Pentax XW's, 20mm Widescan III's.
21mm Ethos,17mm Ethos, 22mm Nagler, 40mm Pentax XW, 14mm Pentax XL, 5.2mm Pentax XL, 8-24mm Pentax XL Zoom, 31mm Axiom LX
Member #17


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Anonymous
Unregistered




Re: Zoom eye pieces with BV new [Re: Joe Ogiba]
      #284198 - 12/17/04 12:04 PM

I've been hearing about this "Power switch" but what is it? Is it a lens, a powered lens? Newbe here!

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tomhole
sage


Reged: 12/20/02
Posts: 443
Loc: California, MD
Re: Zoom eye pieces with BV new [Re: ]
      #284211 - 12/17/04 12:24 PM

Here's some info on the PXS's that I own(ed).

http://www.tomhole.com/Binoviewers.htm

Happy Holidays,

Tom

--------------------
11" Starmaster


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Anonymous
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Re: Zoom eye pieces with BV new [Re: tomhole]
      #284223 - 12/17/04 12:47 PM

Read it, but still not clear, is it an accessory one would use with a 10" Meade LX200 GPS scope? I have on my list the 1.25 TV bino, 2 x Tele Vue Zoom 8.0-24.0mm Eyepiece, and 2 x Meade Series 5000 6.7mm Ultra Wide Angle Eyepiece. I added one of TVs Tele Vue 2.5x Powermate but not sure if it will work with binos or do I need two of these? I'm trying to get everything I need for best quality viewing for students. IF you see anything I'm missing, I'd be most appreciative. I have a grant for this and have to get it right first time, won't have a second chance to reorder.

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tomhole
sage


Reged: 12/20/02
Posts: 443
Loc: California, MD
Re: Zoom eye pieces with BV new [Re: ]
      #284237 - 12/17/04 01:00 PM

Hmmm, you'll have to call Denkmeier and see if they are selling the Power Switch as a seperate unit for TV owners.

Basically, for an SCT, the PSX gives you a set selection of magnifications. It does this by moving an optic into and out of the optics train.

With a single arm PSX, you get 1x and your choice of .7x or 2x. With a 2 arm PSX, you get .7x/1x/2x. .7x is achieved by sliding a focal reducer into the light path (then you must refocus). 1x is no extra optics. 2x is a barlow in the light path.

The nice thing about this setup is every ep is actually 3 ep's. For SCT owners, it is sweet. A 13 Nagler becomes a 17 Nagler, 13 Nagler and 6.5 Nagler. A very nice option.

The Powermate will work as a corrector, but it will be 2x, not 2.5x. That should be a fine addition for some extra magnification.

Another option you might consider is the new Denk PSX diagonal. It is the same as a PSX corrector but is part of the diagonal instead of the binoviewers. Now you get 3 mags for all ep's, cyclops or bino.

Anyway, a call to Russ at Denkmeier should clear everything up on the PSX. As a non-SCT user, I must publish a disclaimer that everything I have said up to this point might e rubbish.

Happy Holidays,

Tom

--------------------
11" Starmaster


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Anonymous
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Re: Zoom eye pieces with BV new [Re: tomhole]
      #284272 - 12/17/04 01:34 PM

Thank you Tom for your response. I have not used one of these things but I'm involved with developing distance learning tools hence the choice of the Meade GPS. We'll have it set for remote control for teachers and we're thinking of a moble classroom with a dome or a small complex that teachers in the area can use for field trips and have a main meeting room and 4-5 domes with Meade 14" in all but one and for the last one, we'll pick a differect kind of scope, one that would be best we could house in the 20 to 30 inch range. This 10" is for experments and to create a model for further funding. I felt the bino viewer would be especially great for kids. The idea is there is nothing that will excite a kid and give them the wonder of the possibilities of this universe than looking through a good telescope and seeing the skys with their own two eye. An image on a computer or photo cannot have the same effect on a child. The problem I have is that I am limited to the selection offered at B&H Photo for the billing is so complex that they asked me to keep it with one distributor for ease. Since we are ordering about 60K in digital camera gear from them, it needed to go into that one large order. they have a good selection and I've made mine from reading this forum. But with all the opinions, after a while you start second guessing every choice you make. I do appreciate your interest.

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tomhole
sage


Reged: 12/20/02
Posts: 443
Loc: California, MD
Re: Zoom eye pieces with BV new [Re: ]
      #284286 - 12/17/04 01:55 PM

Ahh, now it's making sense.

Here's what I would get:

TV Binovue w/ 2x corrector

http://www.bhphotovideo.com/bnh/controller/home?O=productlist&A=details&Q=&sku=329525&is=REG

A pair of 24 Pans:

http://www.bhphotovideo.com/bnh/controller/home?O=productlist&A=details&Q=&sku=329406&is=REG

A pair of TV click stop zooms:

http://www.bhphotovideo.com/bnh/controller/home?O=productlist&A=details&Q=&sku=329453&is=REG

Then whatever else on the low end you feel you might need for higher magnifications.

If that experiment scope is an SCT, you can use the Binovues without a corrector for 1x and then with the TV 2x corrector for 2x. The 2x corrector is better to use with the Binovues than a Powermate.

The 24 Pans might seem redundant with the 8-24 zooms until you see the paultry 43 deg AFOV of the zooms at 24mm. The 24 Pans in a big scope like you are contemplating would be very nice.

That setup should provide you with about as much fun as a kid should be allowed to have.

Keep asking questions. I have done many outreach programs with my 11" Starmaster with the binoviewers and it is a hit every time. The binoviewers make all the difference. I have kids from 3 to 80 looking through them in awe.

Happy Holidays,

Tom

--------------------
11" Starmaster


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Anonymous
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Re: Zoom eye pieces with BV new [Re: tomhole]
      #284308 - 12/17/04 02:16 PM

Woo, OK you stepped me up in price a little but it has to be good for the kids since they rarely get to experience a good scope. Here is my adjusted list and please, if you see anything I don't really need or something that would be better...
What is really cool, we have Canon 20ds and a Canon 1Ds MkII coming at 16.5 million pixels in a 35 mm format digital. Astrophotography is for us big boys to play with. I've been wondering what a Canon 2x II Extender EF - Autofocus would do mounted to that T-mount. http://www.bhphotovideo.com/bnh/controller/home?ci=1&sb=ps&pn=1&sq=desc&InitialSearch=yes&O=SearchBar&A=search&Q=*&shs=CA2XEF2&image.x=6&image.y=6

1 Meade LX200GPS-SMT 10.0"/254mm with UHC $2,979
1 Meade #1402 Tube Balance Weight System $106
1 Meade #610 Dew Shield for 10.0" $149
1 Meade Soft Carrying Case for 10.0" LX200 $195
1 Meade 10"/12" Superwedge $395
1 Tele Vue Bino Vue Stereo Binocular Viewer 2x Prism $1,030
2 Tele Vue Zoom 8.0-24.0mm Eyepiece (1.25") $210
2 Tele Vue Panoptic Wide Angle 24.0mm 1.25") $295
1 Meade #1220 Field De Rotator for LX200 $389
1 Meade #647 Flip Mirror System $259
1 Meade Deep Sky Imager & AutoStar Software $299
1 Tele Vue 90-Degree Everbrite Erect Diagonal $190
1 Meade Series 4000 #911X O-III Nebular Filter $154
1 Meade f/6.3 Focal Reducer/Field Flattener $129
1 Meade #777 Off-Axis Guider $89
1 Meade # 547 AC Adapter $74
1 Meade LX200 Interface Cable $26
1 Meade #607 DC 12v Power Cord (25.0'/7.6 m) $29
1 Meade SLR (35mm OR Digital) Camera Adapter 26
2 Meade Series 4000 Moon Filter ND96 $19
1 Meade T-Adapter, Special for CCD Attachment $34
1 General Brand T-Mount for Canon EOS 16

Edited by Christian (12/17/04 02:23 PM)


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tomhole
sage


Reged: 12/20/02
Posts: 443
Loc: California, MD
Re: Zoom eye pieces with BV new [Re: ]
      #284324 - 12/17/04 02:28 PM

Well, I must re-submit my disclaimer that I know little to nothing about SCT's. So, all you SCT owners, chime in and help out.

I do know that binoviewer setup with that scope should work very well. I know the 24 Pans added a chunk of change, but they are just fantastic with binoviewers. Put the moon in them and the kids will be oohing and ahhing all night long. The click stop zooms will be fun to play with and should perform well in the SCT.

If money gets too tight, you can punt the 24 Pans for the Meade 24.5mm Super Wides. Should be 90% as good in the SCT.

http://www.bhphotovideo.com/bnh/controller/home?O=productlist&A=details&Q=&sku=202985&is=REG

They show out of stock, though. The Pans are worth it if you have a grant to cover them.

Tom

--------------------
11" Starmaster


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Anonymous
Unregistered




Re: Zoom eye pieces with BV new [Re: tomhole]
      #284349 - 12/17/04 03:12 PM

Our grant was for 500 grand and they gave me about 120 grand to play with. This scope was an after thought because we were building up equipment for graphic art, photography, a lot of servers, etc. We want the kids to be able to come in and all see the action on a laptop so I got about 20 Dells for that and a super workstation for processing. It's been fun.
The thing about the bino viewer, I thought the x2 version was for other scopes and the first one I had was for SCTs.
Somehow I missed something. Whatever I need, I can chuck something else somewhere but we have programs for all the other stuff and this will be just a test bed for a future grant. The USD people likes what we're doing down here and they offered to help us go for another 500k so this project could get us enough to do something fantastic for the kids of East Texas. That long tub on the x2 binos looks like it would stick out a lot and be unstable in the tube. When I was looking at pics of people's setups, they didn't stick out like these look like they would with that long shaft. But if the x2 quality from these is better then a x2 accessory, then I believe it to be worth it. Course to add a x2 it would make the bino stick out too would it not?

Edited by Christian (12/17/04 03:21 PM)


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tomhole
sage


Reged: 12/20/02
Posts: 443
Loc: California, MD
Re: Zoom eye pieces with BV new [Re: ]
      #284365 - 12/17/04 03:25 PM

The Binovue with the 2x corrector on it will seat all the way up to the shoulder of the Binovue. So the 2x corrector will be all in the diagonal. You MUST have a TV high hat adaptor or the 2x corrector will hit the diagonal mirror. I saw you had a TV diagonal listed, so that should work. Just be careful the first time you put the Binovue w/ corrector into the diagonal.

You can use it without the 2x corrector in an SCT for 1x performance. Using the 2x corrector is kinda like adding a barlow.

Man, that has to be fun spending that much of other people's money on something you love. I have a $1.2 B budget at work, but I can't buy anything fun with it.

Have fun and please keep us filled in on how things go. Sure sounds like fun.

Tom

--------------------
11" Starmaster


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Anonymous
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Re: Zoom eye pieces with BV new [Re: ]
      #284369 - 12/17/04 03:29 PM

One last note, if we do a big project, we'll need a real astronomer who likes working with kids to run the program. We are located in a small town of only 2 thousand people but we have 60+ Bed & Breakfast establishments so to make the project self funding, the domes can be rented to viewers for late night entertainment for the B&B industry. It known for antiques but there is little to do after dark but go eat.

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kruzmisl
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Reged: 09/29/03
Posts: 77
Loc: Thousand Oaks, CA
Re: Zoom eye pieces with BV new [Re: tomhole]
      #284434 - 12/17/04 04:35 PM Attachment (134 downloads)

Christian;
WOW you don't believe in taking small bites!
I have a LX200GPS-SMT 10" so I'm familiar with it.
1. Join the LX200GPS Yahoo group. 4000 great members.
http://groups.yahoo.com/group/LX200GPS
2. Read the C/N LX200 group
3. Are you going to move the scope or have it in a fixed position? If not the carry case is not necessary. Save the shipping box however in case you need warranty work.
You should realize that in the quest for the quality equipment you are looking for, not all of the fine companies sell through dealers.
The TeleVue Bino is one of the premium units. It is a 1.25" binoviewer. At some point if you are going to go to a 20 inch scope, you would not do it justice without a 2" binoviewer so you can get a nice wide field of view. The only one available is at:
http://www.siebertoptics.com
I recently received one and it is in a class by itself.
I'll go over your list and comment:

1 Meade LX200GPS-SMT 10.0"/254mm with UHC $2,979 Yes! If your looking at a fixed location consider the 12". Or 14"
1 Meade #1402 Tube Balance Weight System $106 Try a Losmandy two dimensional system rather than the Meade 1D.
1 Meade #610 Dew Shield for 10.0" $149 Fine
1 Meade Soft Carrying Case for 10.0" LX200 $195 Mobile?
1 Meade 10"/12" Superwedge $395 Consider a Milburn or other after market. Annacortes is a distributor or Milburn direct. The Meade takes a lot of aftermarket work to work even adequately.
1 Tele Vue Bino Vue Stereo Binocular Viewer 2x Prism $1,030 Beautiful Unit but also consider Denkemeier, Siebert or AP Baader. Look at multiple OCAs or OCSs (depends on the Co.) to give you multiple powers from the same eyepieces.
2 Tele Vue Zoom 8.0-24.0mm Eyepiece (1.25") $210 Very Handy and a reasonably good zoom. Their 3-6 zoom is great but too powerful for the 10" in most cases. Eliminates multi OCAs but this zoom is a compromise between FOV and convenience.
2 Tele Vue Panoptic Wide Angle 24.0mm 1.25") $295 Great
1 Meade #1220 Field De Rotator for LX200 $389 NO. Only if you are trying to take long exposure pictures without a wedge. Most people can't get it to work anyway.
1 Meade #647 Flip Mirror System $259 NO. Had one. Try a Van Slyke Slider 2. 647 flexes and makes the light path too long, although it does work but it's like a Yugo vs a BMW.
http://www.observatory.org
Also the Van Slyke Masterguide focuser (including the ones without a motor) work incredibly well especially for start parties where even a small child can adjust their own focus. You can tell when they hit it. The electro focuser that comes with it is almost impossible to train someone especially a child to use in a short time, and the main focuser on the Meade shifts the mirror and the image when you use it. The VSE focuser was the best thing I added to my scope other than the binoviewer.
1 Meade Deep Sky Imager & AutoStar Software $299 Good start
1 Tele Vue 90-Degree Everbrite Erect Diagonal $190 NO Get the Everbrite 2" diagonal $275. You will end up getting one soon anyway.
1 Meade Series 4000 #911X O-III Nebular Filter $154 Try Astronomics or other sources. Whatever you get get the 2" on to go on the 2" TeleView diagonal. That way one filter will be viewed by both binoviewer eyepieces, or monovision of course also.
1 Meade f/6.3 Focal Reducer/Field Flattener $129 Fine.
1 Meade #777 Off-Axis Guider $89 NO Get the Van Slyke slider, it has it's own guider. So do many CCD Cameras if you go that route.
1 Meade # 547 AC Adapter $74 Yes. Don't use the "C" cells.
1 Meade LX200 Interface Cable $26 Yes
1 Meade #607 DC 12v Power Cord (25.0'/7.6 m) $29 Yes
1 Meade SLR (35mm OR Digital) Camera Adapter 26 Don't bother. Go to Scopetronics and get a Maxifiew DSLR that connects right to a canon and will hold any 1.25" eyepiece for photography through the eyepiece itself, called "eyepiece projection". (Or get their 2" DSLR)
2 Meade Series 4000 Moon Filter ND96 $19 NO Get ONE 2" filter that goes into the end of the diagonal.
1 Meade T-Adapter, Special for CCD Attachment $34 OK But the DSLR includes it's own t-adapter end so your Canon EOS connects directly to it without any adapter that could work loose.
1 General Brand T-Mount for Canon EOS 16 Same as above.
Other things:
Even inside you often get dew, even with a dew shield. Get a "Dewbuster" brand, or a Kendrick as I've read they've enhanced their model. These run off 12 volt like the scope so the converter is needed. Most run a "jumpstart" 17 volt battery. Costco/Walmart etc about $60. Will run a dewbuster for a night or more depending on the weather or your LX200 for many nights. With indoor power you could look at a 12 volt converter however. If you dew up you see nothing.
Lots of other ways to spend $ but you've got a great system going. These of course are my opinions, but I got them from not only my own experience, but mostly from others on the forums.

I'd be glad to give you more detail.
John Shwope

Attachment

Edited by kruzmisl (12/17/04 05:00 PM)


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kruzmisl
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Reged: 09/29/03
Posts: 77
Loc: Thousand Oaks, CA
Re: Zoom eye pieces with BV new [Re: kruzmisl]
      #284446 - 12/17/04 04:50 PM Attachment (116 downloads)

Christian;
The Whole scope with a Canon 10D connected through the Maxiview DSLR through the Van Slyke Slider 2 focused by the Van Slyke focuser. (By the way the Meade 6.3 focal reducer fits INSIDE the VS focuser without any adapters which can be a pain. I "piggyback" a TeleVue 85 mm refractor on top, which has a Coronado solar filter system. The 85 can also go on its own tripod via quick releases. The Losmandy weights are on the track under the scope. I need a lot because of the piggyback to balance which it does well. The strap hiding the last "E" in Meade is the Dew heater.
Good luck
John

Attachment

Edited by kruzmisl (12/17/04 04:57 PM)


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Anonymous
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Re: Zoom eye pieces with BV new [Re: kruzmisl]
      #284466 - 12/17/04 05:18 PM

I saw that setup and talk about drulling. What you missed in my post is that I have to purchase all fom one vendor and since we already have a large order for B&H, I have to chose from their selection. That limits my choices.
The 10" is a test bed and dig this, after the two year testing period, we get to keep all this equipment for personal use. For the education center, we'll start from scratch with new 14" and up. I have a drawing of the proposed facility if I new how to post it and if I could send it to one of you guys so you could post it for all to see. It's interesting. I got great tech guys but no astronomy experts but before we go forward with a real project, we'll have to get an expert in here.


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Anonymous
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Re: Zoom eye pieces with BV new [Re: ]
      #284472 - 12/17/04 05:30 PM

Couple questions, on the flip mirror, should I go with the Meade #777 Off-Axis Guider and chuck the mirror?
Can you recommend something other than the t-mount that they have at B&H if you know of one?
I have a wedge, so you say chuck the De Rotator?
Will the 2" moon filter work with 1.25 eye pieces? See I don't know how these parts or where these parts connect in the system.
I using the DSI but I also have a Canon 1Ds coming for digital work and it doesn't come with the stuff to attach it to the telescople. ??

Sorry to show my ignorance, that's why I came to you guys.


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Anonymous
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Re: Zoom eye pieces with BV new [Re: ]
      #284494 - 12/17/04 05:52 PM

One other thing, we're located in Jefferson Texas, 35 miles NW of Shreveport, LA. I'm working with the Jeffersonian Institute on educational projects.

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Anonymous
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Re: Zoom eye pieces with BV *DELETED* new [Re: ]
      #284501 - 12/17/04 05:54 PM

That focuser is awesome!

Edited by Christian (12/17/04 08:22 PM)


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Anonymous
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Re: Zoom eye pieces with BV new [Re: ]
      #284598 - 12/17/04 07:57 PM Attachment (109 downloads)

observatory idea. Something I whipped up in PhotoShop to visualize the proposal. It needs to have the remote control capability from all scopes including dome control. I suspect we could get away with a budget of 100-150k depending on the number of domes. The center will have the biggest thing we can get someone to build for us and 14" Meades in the small domes.

I would also like to say that there is not an astronomy club out here in East Texas and we're in a B&B town, a lovely place where couple come to get away from the big city. This would be a wonderful place for meets, course I don't know our viewing conditions out here. Now not being knowledgable in this stuff, I welcome the input from this community in ways that can help us IF we get the go ahead to develop this proposal. The Jeffersonian likes the idea, the main thing is getting the grant money. It takes a couple years to get through these large ones from the government but we will go after every grant source we can find. They have raked in 11 million in grants in the past 6 years so we have the ear of the grant community and a lot of politicians. If we get a go ahead, I'll bring this to the community for help, input, ideas, and open an invitation to the community to partispate in the observatory. We would want a 24 hour online system for students and teachers. I suspect an idea to have an online astrology club that could pay a small membership that include a given amount of scope time. Just ideas to support it and education!

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Edited by Christian (12/17/04 08:35 PM)


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kruzmisl
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Reged: 09/29/03
Posts: 77
Loc: Thousand Oaks, CA
Re: Zoom eye pieces with BV new [Re: ]
      #284688 - 12/17/04 10:17 PM

Nice plans. There are people who are expert in them. This is too big a decision not to get help.
Your questions.
Nix the 647 and get the 777. It's cheap enough to try with your Meade DSI camera, at least I read the DSI will guide. Save for a VSE slider rather than the 647. One thing that you might consider is that with the Canons you won't be doing 60 minute exposures. More like 30 seconds, and then use a stacking program like Resistax to stack them to bring out the image. Focus is more of an issue and a big one. I got a Canon "right angle C" which slides down over the eyepiece of the 20D. 1Ds I'm pretty sure also. I got mine at B&H BTW. First it let's you focus without laying on the ground as it is right angle. Second it magnifies the screen by 1.25 Xs AND 2.5 Xs, which allows you to get closer to focus. It still is difficult. Also get the TC-80N3, timed remote shutter release, again from B&H. You don't want to be pressing the shutter and you can set the exposure time also. (It is on a cord however, you can get an extension I believe).
I recently got a Stellar Technologies International
http://www.stellar-international.com
Series IV 'Stiletto' Pro Edition model for EOS focuser, which I've been told works great. Just replace your Canon, focus, put you Canon back on and shoot. I'm looking forward to trying it as I've not have perfect focuse on some solar shots.
If you have a wedge, chuck the derotator. It just tries to rotate your camera to compensate for what the wedge does naturally, but I hear it's a bear to get right. Besides remember the 30 second exposures.
Get the 2" diagonal. Get the 2" diagonal. Get the 2" diagonal. The 2" filters screw into the telescope end of the diagonal. The eyepiece or binoviewer slide into the other end. (The 2" diagonal should come with a 1.25" adapter so you can also use it with 1.25" eyepieces or binos. You will also be set to try a 2" eyepiece like the Naglers.
http://www.televue.com/home/default_2.asp
With the direction you are going, TeleVue should be your first stop after the scope.
That's all for now folks.
John


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kruzmisl
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Reged: 09/29/03
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Loc: Thousand Oaks, CA
Re: Zoom eye pieces with BV new [Re: kruzmisl]
      #284694 - 12/17/04 10:24 PM

One last thing.
Where you live you probably will have a DEW problem. Address it not with a "Dewbuster" and you won't have to worry again. It works in conjunctio with your Meade Dew shield. I got a second heater for my TV 85 and one that I wrap arount my eyepiece or with my binoviers, around both eyepieces.
John

Edited by kruzmisl (12/17/04 11:15 PM)


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Re: Zoom eye pieces with BV new [Re: kruzmisl]
      #284708 - 12/17/04 10:48 PM

Thanks, changing the diagonal. Now your saying that going through the diagonal instead of straight through the scope is better or are you saying use the 777 for alignment, and go straight through to an eye piece and then the camera? So chuck the T-adapter, I don't need it? (I think I miss read something) I got all the canon accessories thay make I think including the right angle C and 80N3. Off to change my list! Thanks

Edited by Christian (12/17/04 11:03 PM)


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Re: Zoom eye pieces with BV new [Re: ]
      #284714 - 12/17/04 10:57 PM

Tele Vue Zoom 8.0-24.0mm Eyepiece (1.25")
Tele Vue Panoptic Wide Angle 24.0mm Eyepiece (1.25")
Now that I changed to a 2" diagonal, keep 1.25" eyepieces?
The issue of the bino eye spacing has been pointed out about the 2". Any thoughts? the bino which is 1.25 fits nicely int o the 2" diagonal? Never having been in the room with one of these things I'm flyin blind and what to be sure everything goes together. Now to go find that camera attachment your talking about. Sorry for the ignorance.

Edited by Christian (12/17/04 11:06 PM)


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Re: Zoom eye pieces with BV new [Re: ]
      #284725 - 12/17/04 11:15 PM

Nother question, they have:
Tele Vue SLR (35mm OR Digital) Camera Adapter for Telescopes which Accept 2.00"
or
the meade 35mm camera adapter. Now I assume the above goes into the diagonal like an eye piece and the regular adapter goes straight out the back. And with the 777 guider on, are you saying I don't need the camera adapter cause the EOS adapter goes right into the 777? Do I have it righ?


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kruzmisl
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Reged: 09/29/03
Posts: 77
Loc: Thousand Oaks, CA
Re: Zoom eye pieces with BV new [Re: ]
      #284763 - 12/17/04 11:58 PM

Your getting me confused!
With the kids, you should stick with a "1.25 inch binoviewer". That refers to the 1.25" size of the eyepieces that fit in the binoviewer. The other end of that 1.25" bino that goes into the telescope can have either a 1.25" OCA or a 2" OCA (another reason to have a 2" diagonal). These OCA's come in various powers which multiply the power of your eyepices, like by 1.2Xs, 1.5Xs 1.8Xs etc. As Tom said, your 10" will work without an OCA, (BUT use the 2" diagonal which allows you to stand up rather than kneel to view). You put the binoviwer into the 2" diagonal and view with or without an OCA. Most reflectors like my TV 85 will not come to focus using a binoviewer without an OCA. Your 10" has lots of focus so you can use it without an OCA for 1:1, or choose to use an OCA to give additional powers to the eyepieces. e.g. If you take your 24 mm Pans, and add a 1.5 OCA, the magnification becomes the same as a 16 mm eyepieces. If you used a 2.0 OCA it would be like a 12 mm eyepiece. Some OCA's (or OCS depending on what the manufacturer calls it, but its the same thing) have multiple powers. Some require you to change some parts. The Denk has the power X switch which allows you to push and pull different OCSs into the light beam to change power. They all act like a barlow but without the added length and really work better.
On the 777. I couldn't get on to the Meade site, but the 777 might not be compatible with a 2" set up. I forget how it works and where it goes. BUT, you really don't need it as you are only taking short photos. Look though the Angle finder C to focus and then hit the remote shutter. You can set the camera to have the mirror flop and then 5 seconds later the exposure will begin to minimize shaking.
Your trying to learn about two MAJOR areas, really 3. The scope. Binoviewing. And photography. Follow the right advice and get the equipment. Then begin learning the scope WITHOUT the wedge. Set it up in the regular ALT/AZ position and learn the normal set up. Use the binoviewers and enjoy. Start with the moon and planets if they are up. Use the hand controller and go to "tours". One that always works is "tonights best" since the computer knows what is there to see at the moment. Eventually after a number of nights of wonder and WOW, replace the binoviewer with the camera and take a picture or two. After you've mastered the scope in this position, try setting up the wedge. Look in the LX200GPS archives and files sections for many hints on the wedge as will as great info for just learning the scope.
Remember the fun part.
(A Siebert 2" Elite binoviewer you've seen mentioned uses 2" eyepieces, and is probably too wide for most kids, so stick with the 1.25" like the TeleVue).
Time to go
Trying to stay mostly on topic
John


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Re: Zoom eye pieces with BV new [Re: kruzmisl]
      #284784 - 12/18/04 12:31 AM

Thanks, you got me squared!

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kruzmisl
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Reged: 09/29/03
Posts: 77
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Re: Zoom eye pieces with BV new [Re: ]
      #285769 - 12/19/04 11:09 AM

Christian;
I have a few helpful tips I can attach to an e-mail. E-mail me directly at kruzmisl@adelphia.net
and I'd be glad to send them that way so they are not so off topic.
John


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