DotTune: Video Tutorial for AF tuning without photographs

Started Feb 18, 2013 | Discussions thread
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Horshack OP Veteran Member • Posts: 5,803
Re: DotTune: Video Tutorial for AF tuning without photographs

FtoDin5min wrote:

What would one think is an acceptable difference between side and center sensors AF Fine Tune numbers? Do we know roughly what a unit of AF Fine Tune corresponds to? Formulae/absolute distance?

Likely within a few points but I don't have my 24G with me to establish. Visually the difference should be small enough where both peripheral points produce acceptable and consistent sharpness when using the same tune value as the center, but I haven't translated that into precise AF tune points but I'd guess it's maybe 2-3 points max.

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