Archive 2009 · A stupid focusing and micro-adjustment question

eos3d
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p.1 #1 · A stupid focusing and micro-adjustment question

Hello to all,

If my camera (or the lens) seems to focus behind the chosen area, do I have to put for example +5 or -5 on the micro-adjustment?

Thanks for your help.

Young.

Jan 09, 2009 at 01:18 PM

hjanssen
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p.1 #2 · A stupid focusing and micro-adjustment question

I can't remember it either so I do "try and error" and you have the answer in a few seconds.

Jan 09, 2009 at 01:56 PM

James R
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p.1 #3 · A stupid focusing and micro-adjustment question

"Seems" is too technical for me.

You need to make sure it is back focusing. There are free download charts or products like LensAlign http://www.rawworkflow.com/lensalign which are expensive. Once you're sure, then it is a matter of trial and error. I believe for back focus you add a negative value.

Jan 09, 2009 at 02:24 PM

Chris Langer
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p.1 #4 · A stupid focusing and micro-adjustment question

I do believe its backwards thinking. You add + for back-focusing and - for front focusing.

Chris

Jan 09, 2009 at 02:28 PM

Elan II
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p.1 #5 · A stupid focusing and micro-adjustment question

+ shifts the focus plane away from you.
- shifts the focus plane towards you.

If the lens focuses behind the target, or back-focusing, you need to go into negative (-) with the fine focus adjustment.

Jan 09, 2009 at 02:54 PM

eos3d
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p.1 #6 · A stupid focusing and micro-adjustment question

Thanks for your help friends

Jan 09, 2009 at 03:14 PM


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