Quote:
Originally Posted by Zuts
Hi,
I have an Esprit 120 (3.4 inch focuser), with the supplied flattener it claims it can produce a 43mm round corrected circle of light.
Is this 1mm difference going to present any issues for a full frame camera on the Esprit 120?
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In addition to Greg's comment, the 43mm image circle doesn't mean that it's evenly lit throughout the entire circle. There is a gradual taper off. So the actual evenly lit portion is even smaller than that. However nothing that flats can't "fix".
FYI I shoot the ASI6200 on my Tak µ250CRS who's native FL gives an image circle of 40mm. I kinda "don't care". I still get decent pix out of it.