Question about micro focus adjust procedure

Started May 18, 2012 | Discussions thread
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Question about micro focus adjust procedure
May 18, 2012

I need some help from you folks who are knowledgeable about micro focus adjust, and who have personally already made adjustments with it to your camera(s).

I recently purchased a 1D Mk4 and it seems to be front focusing badly with one of my lenses, a 100-400L. It seems to be ok with my 300 f2.8 and 500 f4.

My question is this: If it currently is focusing in front of the intended subject, do I need to adjust the micro focus adjust positive (+) or negative (-)?

I am confused on which way it needs to go.

I haven't started doing any adjustment yet due to rainly weather lately and my inability to go out side and set up a target at the proper distance for long lenses. But I want to understand what I am doing before I start.


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