Quote:
Originally Posted by Peter.M
I did a calculation in photoshop using the distance between the 10400 and 10350 marks and the distance between the 2 intersections. The difference I get is 6 steps. Being that your CFZ is 10, do you think that the difference causes the scope to be out of focus?
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That's what I'm trying to figure out - the Bahtinov mask shows a difference but I am yet to work out if this is noticeable in terms of star sizes.