Hi Marc, I used 2x2 a bit when I had the FS102 but since getting the FSQ the pixel scale is rather large when binned so I now just stick to 1 x 1 . Unbinned = 2.99 pixels / arc sec 2 x 2 binned = 5.94 pix / arc sec.
I haven't really given it a try but will get around to it at some stage and see what the results are like. For narrow band I tend to use the method I stated using nebulosity and keeping the Lum layer as the narrow band filters are quite selective in what is passed that you can get away with this method at least with 7 nm Ha or smaller filters. Detail is usually quite good and exposure times are not unreasonable.
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Originally Posted by multiweb
Hi Doug I have tried bin2x2 for Ha (once) and I collected more noise from the other channels than just doing bin1x1 and keeping red only, discarding blue & green. Maybe I'm doing something wrong with bin2x2 but having said that I gave up the idea of binning so I don't have much more to say on it. Do you use bin2x2 a lot?
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