It would be interesting to add this camera to the RH200 f/3 and shoot from a dark sky site. I've seen some very impresssive images done with this camera attached to the Tak 180 f/2.8 and Nikon lenses. I see they now have a QHY12!
On the topic, I've seen Tom Davis add OSC shots to his deep illuminance images with outstanding results.
j
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