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Nikon DSLR Cameras
D750
Shuuter doesn't release in my D750 using back button focus with AF-ON
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<blockquote data-quote="nickt" data-source="post: 668195" data-attributes="member: 4923"><p>Your shutter is not firing because your camera is not seeing focus anymore when you recompose. This is what Texas mentioned above. </p><p>Also, the textbook bbf technique is to use af-c and release priority. You are missing out on the full benefit of the technique using af-s and you are likely at the default of focus priority. The camera may not fire if you recompose with those settings.</p><p></p><p>On the d7100 and d7200, the camera (oddly) overrides the a1 and a2 menu priority settings and you get release priority no matter what when you program the back button for af-on. So you didn't have to think about it on your d7100. Not sure what the d750 does but it probably sticks with the a1 and a2 menu settings. In any case, set af-c servo and also set menu a1 to release priority and you will be good to go for the full technique including focus/recompose.</p><p></p><p>If you must use af-s with bbf for some reason, then you will have to set menu a2 to release priority. The reason to use af-c is because in effect it gives you both servo modes. That is the beauty of the technique. Hold the button down and you get continuous focus. Release the button and you get a simulated af-s mode where you can recompose or pre-focus on a location.</p></blockquote><p></p>
[QUOTE="nickt, post: 668195, member: 4923"] Your shutter is not firing because your camera is not seeing focus anymore when you recompose. This is what Texas mentioned above. Also, the textbook bbf technique is to use af-c and release priority. You are missing out on the full benefit of the technique using af-s and you are likely at the default of focus priority. The camera may not fire if you recompose with those settings. On the d7100 and d7200, the camera (oddly) overrides the a1 and a2 menu priority settings and you get release priority no matter what when you program the back button for af-on. So you didn't have to think about it on your d7100. Not sure what the d750 does but it probably sticks with the a1 and a2 menu settings. In any case, set af-c servo and also set menu a1 to release priority and you will be good to go for the full technique including focus/recompose. If you must use af-s with bbf for some reason, then you will have to set menu a2 to release priority. The reason to use af-c is because in effect it gives you both servo modes. That is the beauty of the technique. Hold the button down and you get continuous focus. Release the button and you get a simulated af-s mode where you can recompose or pre-focus on a location. [/QUOTE]
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Nikon DSLR Cameras
D750
Shuuter doesn't release in my D750 using back button focus with AF-ON
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