Orion star shoot guider through long focal length frac?

[Vega]

Has anyone had experience with using the Orion starshoot guider through a 900mm refractor scope for guiding? Is this an ideal focal length? Or does it make it hard to find guide stars with the smaller FoV? A friend of mine used the starshoot as a kit with a small focal length scope that fitted on a finder bracket. As he was guiding alongside his c9.25, the combination just wasn't working well due to the difference in focal lengths between scope and guide scope so now he's looking at longer focal length scopes.

any advice, suggestions would be great

 

thanks

[Davey-T]

I used my 90mm f/10 refractor piggybacked on 10"SCT using the SSAG with no problems.

Theoretically the difference in focal lengths between a guide scope and the imaging scope shouldn't matter.

Dave

[Chris Murray]

i think the ssag is good up to 1500mm focal lemth set up, i use one with my 10in quattro, 1000mm, so should be fine