Oag

[mikemasey]

Hi there,
I have an Orion 90mm Mac-Cas FL1250, and I would like to use an Off Axix Guider to help with my new hobby of astrphotography.
I have read that some of the smaller scopes do not have enough focus travel and will not work.
Orion do make a flip mirror OAG.
Can anyone advise/recomend me?
Thanks
Mike.

[Merlin66]

Which camera?
With the Mak (like the SCT's) there shouldn't be a problem with back focus.
There are many "good" OAG's available - BrightStar/ Orion, Celestron Radial, and I like the new Telescope Service -siding mirror arrangement (Not the narrow 9mm OAG - tooooo many issues!!)
http://www.teleskop-express.de/shop/product_info.php/info/p5190_TS-2--Flip-Mirror-System---Off-Axis-Guider---short-design.html