Hi Neil,
Another advantage of the QHY10 is its round shape, this allows hyperstar imaging at F2 (I'm assuming you have a SCT).
Both of these cameras were introduced to the market 6 or more years ago so are proven technology but I feel that the new CMOS cameras will eventually replace CCD cameras. If you want the latest technology both QHY and ZWO offer CMOS colour cameras in the same size sensors as you have been considering.
Cheers
Bill
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