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Field curvature was obvious with my ASI294 and they are only a 4/3 sensor. I only took one shot without the reducer to see what it was like.
With one of those you need to look at the sensor depth of the DSLR to get the spacing right from a reducer, if it is 45mm then you only need another 10mm for the Skywatcher reducer, which would not be much more than an M48 camera adapter screwed to the reducer nose.
Last edited by The_bluester; 19-07-2019 at 06:43 AM.
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