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<blockquote data-quote="BackdoorArts" data-source="post: 340842" data-attributes="member: 9240">You guys are both spot on for what AF-S is about.&nbsp; What I'm doing is primarily street photos, where I...1. grab the subject at the chosen (center) focus point2. engage auto-focus with the back button3. fire a single frame4. re-aim the camera, either at the same subject, or a new one elsewhere in the frame, releasing the back button as I do this5. re-engage the back button auto-focus... and wait as it attempts to lock on the new subject.Sure, I could go to AF-C with dynamic points, but that's not what I want, particularly in a crowded street where I want a specific target to be in focus.&nbsp; I'm not looking to track a single target, but even if I did I am releasing and re-engaging the back-button (which I may not have been clear about in the initial post), so it shouldn't matter if it's the same subject&nbsp; or something new.&nbsp; Regardless, it would seem that I get an issue either way.&nbsp; Could it have something to do with disengaging and re-engaging the focus system so quickly?</blockquote>

[QUOTE="BackdoorArts, post: 340842, member: 9240"] You guys are both spot on for what AF-S is about. What I'm doing is primarily street photos, where I... 1. grab the subject at the chosen (center) focus point 2. engage auto-focus with the back button 3. fire a single frame 4. re-aim the camera, either at the same subject, or a new one elsewhere in the frame, releasing the back button as I do this 5. re-engage the back button auto-focus ... and wait as it attempts to lock on the new subject. Sure, I could go to AF-C with dynamic points, [I]but[/I] that's not what I want, particularly in a crowded street where I want a specific target to be in focus. I'm not looking to track a single target, but even if I did I am releasing and re-engaging the back-button (which I may not have been clear about in the initial post), so it shouldn't matter if it's the same subject or something new. Regardless, it would seem that I get an issue either way. Could it have something to do with disengaging and re-engaging the focus system so quickly? [/QUOTE]

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