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Old 21-09-2015, 09:51 PM
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peter_4059 (Peter)
Big Scopes are Cool

peter_4059 is offline
 
Join Date: Jun 2007
Location: SE Tasmania
Posts: 4,532
Quote:
Originally Posted by Peter.M View Post
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?
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.
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