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

Orionisf wrote:

Tried to fineture one of my lenses.

And it went fine.

Had to adjust the the lens focuspoint to -17, because it did a confirmed focus from -13 to -20.

Then I wondered can it be true.

I took another test without liveview, the good old way.

The result was completely different with a result at +8.

The focus was spot on.

Wonder why?

If you got -20 on one attempt (beyond range) and +8 on another then something isn't right. Which lens and what focus distance?

Any other has tried the good old way afterwards?

And what was the result?

Most who have compared DotTune to the results they arrived at using other methods have said they aligned within +/- a point. You can read some of their feedback here.

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