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I reckon there would be serious vignetting with a full frame sensor in combination with the 2" focuser that Glen is using, which would count out the 6D or A7s. The corrected field of a MPCC is also smaller than full-frame. If you want to go OSC CCD with that scope, you're best to stick with something like the QHY9c or QHY8/10/12.
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