07-26-2012, 07:43 AM
[quote name='Frank' timestamp='1343276133' post='19596']
PS. Now I see that the focus problem talked about in my question is not called "focus shift"--"focus shift" should refer to the shift in focus when the lens is stopped down. I don't remember what other people call it (the focus is incorrect when the lens is wide open), perhaps "front/back focus problem" (?).
[/quote]
Exactly.
-- Markus
PS. Now I see that the focus problem talked about in my question is not called "focus shift"--"focus shift" should refer to the shift in focus when the lens is stopped down. I don't remember what other people call it (the focus is incorrect when the lens is wide open), perhaps "front/back focus problem" (?).
[/quote]
Exactly.
-- Markus
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