Quote:
Originally Posted by glend
Well how big is the f7 imaging circle? How big is the camera circle? You could just try it to see if it is acceptable. You can always crop out the edges if necessary. Most likely it would be fine for centred objects.
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I was going to suggest the same, I have thought about doing similar with the 115mm and using it for galaxies...like you could crop fifty percent and still have your object and background for many galaxies.
I think it is worth testing and determine where the stars start going funny.
Alex