ryan_pasia

<p>Lad, is it true then that AF points that "follow" the subject is available in the 5D3 only in Scene Intelligent Auto mode?</p>

<p>The feature I'm looking for seems to be called EOS iTR, which is found on the EOS-1D X. Since the 5D Mark III shares the same AF system with the EOS-1D X, there must be a way to implement EOS iTR functionality. Any photo.net veterans with insight on this feature?</p>

<p>I am familiarizing myself with the 5D Mark III's various AF modes.<br> I notice that when I am in "Scene Intelligent Auto" mode (i.e., green rectangle with A+) with "AI Focus AF" selected, when taking pictures of a moving object, the active AF points move with the subject. For example, when taking pictures of my kid, the camera would grab focus around the eyes while the kid is still, and shortly afterwards tracks focus (as evidenced by shifting black rectangles over the AF area) as my kid begins to move around.<br> However, when I shift to "P" mode, also with "AI Focus AF" selected, when I press the shutter button halfway, black rectangles across the AF area appear momentarily and then disappear. I hear the lens shift focus as it tries to keep a subject in focus, but I do not see continuously shifting black rectangles as I had seen in "Scene Intelligent Auto" mode.<br> What settings do I need to use to be able to see those shifting AF points in modes other than "Scene Intelligent Auto"?<br> Thanks!</p>