Quote:
Originally Posted by TareqPhoto
...i am left with QHY163M and ASI1600MM, both have 3.8um pixel size, and i don't want to go longer focal length only to match pixel size for sampling as many told me, but who knows.
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I have the 1600MM. The FRA400/5.6 comes with an adaptor that you can screw straight in to the ZWO filter wheel and 1600MM camera to give you perfect backfocus.
I now also use the 1600MM on my GSO 8" RC giving me 1625mm focal length, and that is meant to be slight oversampling, but that doesn't seem to be the case (to my eye)... Check out some of my work using both scopes at
https://telescopius.com/profile/kalon