2 comments:
1. Just adding an ONAG does not eliminate the need to focus the guide camera. It needs to be focused just as precisely as an OAG, and especially so if you intend to use FocusLock. However, just like an OAG once focused you are pretty much done.
2. A very good option for a focuser that is very rigid, unlike many helical focusers (including the one that is supplied with the ONAG on more recent models) is Gary Jarrette's KISS Focuser that fits SX OAGs and QSI. It's well made and Gary is great to deal with. His focuser will also work very well on the ONAG with a special adapter that Gary knows how to make.
https://www.youtube.com/watch?v=MvLAQJsjsNY
Peter