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WO Bino Viewers

Started by j.cantrell, 09/16/2005 11:27PM
Posted 09/16/2005 11:27PM Opening Post
Arrived this afternoon, tried them out in my F5 GSO dob, light path too long even with the included OCS and I couldn't bring them to focus. Anyone have any ideas short of major surgery?

Posted 09/17/2005 03:41AM #1

Assuming your scope has a two inch focuser, have you tried your lowest profile 2" 1 1/4" adapter?

Do you have any kind of 1 1/4" barrel extension? You could try using it between your binoviewer and the OCS. It will increase the magnification but it will also give you more in-travel

Have you tried different EPs? Look for EPs with Barlow lenses built into the bottom of them. (Orion Expanse, Televue Naglers, Burgess Planetary) These eyepieces require less in-travel.

Finally I believe Siebert Optics sells an adjustable OCS for that binoviewer.

I do not recommend modifying you scope to make a binoviewers work.

Good luck,
Posted 09/17/2005 05:48AM #2

I had the same problem with the Burgess BV and OCA in my XT10. I added this 1" barrel extension that I got from ScopeStuff for $19 and it works fine, although it will increase the magnification of the OCA a little bit.

Hope this helps!

Posted 09/29/2005 07:18AM #3
Hi Jim,

where did you get yours from? Mine are still on backorder from Anacortes.

Posted 10/23/2005 05:00AM #4
Hello there,

I just ordered my WO binoviewers from ,,,,
They were in stock.
I should receive them shortly.

I have a question to anyone who holds a pair of these BVs. I plan to use them on my 2 Dobs.
A 12.5 f/5 discovery.
And a custom 16 f/4.6.
I sure hope they come to focus.

Use a Extension tube? Maybe.
I own a Meade #140 barlow with a ~4" long tube.
I would rather use the provided 1.6x nosepiece as it should be lighter. Lets see what works.

Thanks Jim for your posting.
Does anyone else, use these on a fast NEWT system?
I would like to hear your expereince.

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