You can guide down to mag 8 or 8.5 stars with the video integration apparently of about 0.5 sec. This is far below what a webcam can go down to without modification. For a modded webcam you are up for ~$AU500 if you can get one. For $US650 I know how I would want to spend my money. Also apparently guides to 0.3 of a pixel (with 70x500mm guidescope) with a main scope working at about 1500mm (if I remeber correctly). I hope that QHY eventually manages to come up with something similar to what Martin Myslivec has conjoured up. Maybe you should ask him (QHY) if he would consider USB in his camera as he does respond to the messages on his discussion forum. Would be good to see a choice in this area.
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