auto focus problem

Started Mar 3, 2014 | Questions thread
DavidNJ100
DavidNJ100 Contributing Member • Posts: 514
Re: auto focus problem

Limburger wrote:

Custom functions set C.FnIII 4 correctly?

I just had this problem.

Had no idea why it would only focus if I manually moved the focus near the correct setting. Of course the lens made all sorts of noises (this is a noisy lens).

I had turned this off because when I tried to get birds in flight, if I got off target it quickly ran the focus well out of range, I couldn't see anything, and it couldn't refocus on the that blurry a small target.

Thanks for the prescient post.

Note: this setting tells the camera to continue focusing or to stop if it tries but fails to achieve focus. It is for telephoto lenses so that the camera doesn't become grossly out of focus. That was important for a target 200 ft away, less so for one 40 ft away.

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