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field flatteners
Good Evening
I'm trying to get sharp round stars as much to the edge of my images as possible.
I have tracked down a good one from Hotech for my Skywatcher 80ed (i've seen the results on a friends image)
I am using the Celstron f6.3 focal reducer when imaging thru my C8 but the edges of the image are really poor, lots of elongation and i hate cropping.
Any recommendation for a flttener that will give me a much better result?
regards
Carl
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