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Sorry Marc I cannot agree. The C11 will always pull in more light than a 80mm apo and also has a greater capacity to resolve. It stands to reason 40 mins of data is going to provide a brighter image. The image I have posted is pretty much as is, stacked with noise filter run over it. You have been far more aggressive in your processing. FYI my image scale is 2.3 arcsec/pix and obviously I cropped the image as it was taken before I got a flattener. My point being that with the QHY8 on the back of my little apo with similar exposure time the detail and smoothness was far less then the 9.
Mark
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