Oag

[mikemasey (Mike)]

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 (Ken)]

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/...rt-design.html