how can the NEX auto-focus miss these shots?

Started Feb 17, 2014 | Discussions thread
GaryW Veteran Member • Posts: 8,549
Re: Center focus and re-compose

chromnd wrote:

... I also use DMF, because sometimes when I use large aperture at portrait shots and I focus on one eye, it happens that the NEX chooses to focus on the hair next to the eye, because they have simply more contrast.

At some point, I cut the camera some slack and figure that it doesn't know exactly what I want to focus on, and it's just picking something. In general, the DOF will be large enough that it's probably OK.

If you aren't going to rely on the AF choosing a point for you (particularly when there's a shallow focal plane, or something else in the way that you know the camera is going to focus on, like shooting through a fence or some branches), DMF is a really good option.

The problem is, that it all has to go very quickly, so a lot of practice is mandatory. I wonder how the new a6000 will perform, to be honest I'm not so confident about a major improvement - but that's just my gut feeling.

Someone mentioned "eye-focus"?! That might help, although I wonder how it knows which eye, if you have that shallow of a DOF....

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Gary W.

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