D7100 facial recognition?

Started Aug 17, 2013 | Discussions thread
mosswings Veteran Member • Posts: 8,957
Re: D7100 facial recognition?

The D7100 has face recognition in LiveView mode, but in PDAF mode it has something called "subject recognition", which basically picks out the closest object that appears different from the background.

LiveView autofocusing is glacially slow, and although LiveView face recognition can detect up to 35 faces and select the closest from amongst them, there's no guarantee that it will focus on that subject's near eye, only that it'll find a face and make the entire face reasonably in focus.

You're trying to substitute the camera's automatics for your own manual control of focus point in a situation that really is beyond the intention of the D7100's face recognition (precise focus on a particular part of a subject's face with a thin DOF lens), and that's not how the D7100 really wants to be operated. Particularly if you want to focus FAST - which requires PDAF, or something like a Series 1 or, I hate to say it, one of the mirrorless cameras, perhaps even the Canon 70D, all which have extremely responsive LiveView autofocusing.

If you're willing to live with subject detection AF through the viewfinder, you can get fast AF, but not with the selectivity that you're desiring.

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