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Thanks Trevor.
A QHY294M and a QHY600M Photographic model. Also got a ZWO ASI290m for an autoguider. It seems very clean compared to CCD and also no interference patterns I tend to get with CCD autoguiders.
Another thing is to inspect those performance graphs on the QHY website. They show the different performances in the different read modes. Mode 0 seems best for the QHY600M. It may be different for the 182C.
Greg.
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