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Dot-Tune: Autofocus Fine Tuning in under 5 minutes

Message #12331092 by plover · 1 earlier version stored · newest first

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Current versionSaved May 07, 2014 at 10:52 AMTitle changed
Dot-Tune: Autofocus Fine Tuning in under 5 minutes
Just tried this with my Canon 100mm L IS macro lens (on a 5D3). I tried it at 3 different distances:
0.5 mtr = -7 (+1 & -15)
1.0 mtr = -2 (+6 & -10)
2.0 mtr = -5.5 (+2 & -13)

I almost always use the lens at 0.5 mtrs or less so I guess -7 is the one to try!!!!
What was interesting is that in all cases the green dot confirmation was rock solid and quick at the furthest point (both ends of the scale) I had no flashing whatsoever, it was either solid dot right away or no dot whatsoever for at least 5 secs - is this normal or just a trait of a macro lens?

Thanks for all the time and effort you have put in 'Snapsy'
Original postPosted May 07, 2014 at 09:40 AM
Re: Dot-Tune: Autofocus Fine Tuning in under 5 minutes
Just tried this with my Canon 100mm L IS macro lens (on a 5D3). I tried it at 3 different distances:
0.5 mtr = -7 (+1 & -15)
1.0 mtr = -2 (+6 & -10)
2.0 mtr = -5.5 (+2 & -13)

I almost always use the lens at 0.5 mtrs or less so I guess -7 is the one to try!!!!
What was interesting is that in all cases the green dot confirmation was rock solid and quick at the furthest point (both ends of the scale) I had no flashing whatsoever, it was either solid dot right away or no dot whatsoever for at least 5 secs - is this normal or just a trait of a macro lens?

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