DotTune: Video Tutorial for AF tuning without photographs

Started Feb 18, 2013 | Discussions thread
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Randy Stephens Regular Member • Posts: 103
Re: Different ranges when I change ISO

I think I understand all the Dot method but the need to obtain Critical Focus in Live View or Manual.   Does it just create a starting point to speed up the process or does something more important?

I was trying the Dot method on a 800 VR 5.6 w/ 1.25 on a D810 wide open thinking I would have a razor thin focus length.  But after setting everything up the confirmation dot would lite over a 10+ range after making the short toggle of the manual focus and re-AF focusing.   What am I doing wrong?

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Randy

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