mldee
31-08-2009, 10:15 PM
I bought one of these some weeks ago and just got around to trying it.
As in all the plaintive FR posts before me:sadeyes:, I too cannot get focus.
I'm using a Canon 1000d with GSO T ring to 2" nosepiece, with the FR screwed in the front of it, and trying on both my SW ED100 refractor and Celestron C8 SCT, mounted side by side. Both equipped with 2" Crayfords.
I can't try the FR directly mounted to the C8 as I don't have a 2" visual back and just get a large blob via the crayford. On the SW, using liveview, I can get Rigel down to about a 15mm blob at max infocus on its crayford. Both scopes focus normally around mid-focus without the FR.
I lashed up a T ring direct to the FR and tried that to get it closer to the sensor, but just got what appeared to be a very badly vignetted big blob:mad2:
Has anyone actually successfully used this brand of FR, and if so, with what setup?
I don't want to exchange it if it's just my problem, and I've read every forum thread I can on the subject, IIS, MAS, CN, most of which don't say much about the GSO 2" version.
Any assistance would be appreciated, :D
As in all the plaintive FR posts before me:sadeyes:, I too cannot get focus.
I'm using a Canon 1000d with GSO T ring to 2" nosepiece, with the FR screwed in the front of it, and trying on both my SW ED100 refractor and Celestron C8 SCT, mounted side by side. Both equipped with 2" Crayfords.
I can't try the FR directly mounted to the C8 as I don't have a 2" visual back and just get a large blob via the crayford. On the SW, using liveview, I can get Rigel down to about a 15mm blob at max infocus on its crayford. Both scopes focus normally around mid-focus without the FR.
I lashed up a T ring direct to the FR and tried that to get it closer to the sensor, but just got what appeared to be a very badly vignetted big blob:mad2:
Has anyone actually successfully used this brand of FR, and if so, with what setup?
I don't want to exchange it if it's just my problem, and I've read every forum thread I can on the subject, IIS, MAS, CN, most of which don't say much about the GSO 2" version.
Any assistance would be appreciated, :D