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DotTune: Video Tutorial for AF tuning without photographs

Started Feb 18, 2013 | Discussions thread
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Robin Casady
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Re: DotTune: Video Tutorial for AF tuning without photographs
In reply to Horshack, Feb 19, 2013

Horshack wrote:

Robin Casady wrote:

Thanks Horshack.

How much does the range vary? Instead of moving increment by increment can you take a jump to speed up finding the other end of the range?

It depends on the lens. On my Sigma 35mm f/1.4 the range is very small, only 4 AF tune units. On my 50G f/1.4 it's 9 tune units. You can jump around at any increment you'd like when trying to locate the general are of the range.

Thanks. Just out of curiosity, any idea what characteristic of the lens determines the range?

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Robin Casady
"The whole problem with the world is that fools and fanatics are always so certain of themselves, and wiser people so full of doubts."
— Bertrand Russell

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