Thanks all, not an image that I reckon is fantastic, but the fact of getting the OAG working is the main thing and will mean I can go to 20 minute subs for my imaging purposes.
Ok now the scope I was using is the RC8". For guiding I was using the Star Shoot Autoguider on the OAG on the QSI583WSG unit.
The software I am using is PHD (not got MaximDL settings sorted yet but that will come).
James for focus I use the Bahtinov mask and for collimation I am using an out of focus star image taken in Maxim. Once collimation is fixed or close I use the mask for focus. I am quite particular normally about this. It takes several minutes to get it just right. Some people can use FWHM but I find that this can be a bit hit and miss. The lower the FWHM the sharper the focus, but the mask really shows what is going on.
David, sorting out flexure with my system has been a real pain. I had it completely sorted when I was using the 40D from Central DS but when I got the QSI things had to be sorted again. Not sure why as the weight was similar, so it has been a challenge to get it right and I still think there is more room for improvement, but this is a huge step in the right direction.
Wasyoungonce, my imaging camera is the QSI583. Exposure duration was 5 minutes subs in LRGB but it really needs 10 minute subs to get this image to shine. For one shot colour, please check out my site for exposure details taken with my 40D. I hope that helps you out.
Frank, getting an OAG working on long focus can be a little bit of a pain. In PHD I have the aggression set to 90%, 500 step calibration, min motion to 0.15, camera gain at 100% and 2.5 second exposures. I tend to think that focus is critical for guiding despite what Craig Stark says where the guide star can be slightly out of focus. My results are always better with a sharply focused guide star. Other may find differing results and I challenge them to show me that I might be wrong.
I hope that has answered everyones questions and if you want anymore help please ask and I hope I can answer. The more expert guys on OA guiding are more than welcome to contribute what they know.
Thanks once again.