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Yep, you are right Colin.
Got the word direct from Dr Qiu at QHY. A OSC camera cannot be used natively at 2x2 as you lose all the colour. So you have to capture 1x1, debayer, and then downsample to 2x2.
So if you think about this in another way:
On a scope with just 678mm focal length, the image scale is 1.14 arcsecs per pixel. So a good approach would be to bin the camera 2x2, which would help mask any guide errors or accommodate average seeing, and it would certainly quadruple your sensitivity without really noticing any loss in resolution.
Not worth it. I think I will sell this camera.
thanks for the input
Martin
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