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Learning
Photography Q&A
can I assign the fn button to single point focus as well as continuous focus?
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<blockquote data-quote="nickt" data-source="post: 658601" data-attributes="member: 4923"><p>Your question is not clear exactly what you want to switch between.</p><p></p><p>Single Point Focus is an AF Area Mode. The choices are: Single Point, Dynamic 9, 21 or 51pt, 3d tracking and Auto Area.</p><p></p><p>AF-C is a Focus Servo Mode. The choices are AF-C, AF-S, and AF-A. That means continuous servo autofocus, single servo auto focus or automatic switching.</p><p></p><p>Back button focus (when set up correctly) gives you af-c and a psuedo af-s mode depending how you use the button. Is that what you want? Hold the button and get continuous focus. Let the button go and in effect you have af-s mode even though you are still technically in af-c. The downside is you do not get to choose focus priority, you are always in release priority.</p><p></p><p>If you are looking to change the AF Area Mode from single to one of the multipoint modes, no, you can't do that with the fn button. You can do that fairly quickly from the button in the middle of the af/m lever on the front of the camera though. Press button and use front wheel to change area modes.</p><p></p><p>On the d7100, I don't think you can do what is shown in the d500 video above.</p></blockquote><p></p>
[QUOTE="nickt, post: 658601, member: 4923"] Your question is not clear exactly what you want to switch between. Single Point Focus is an AF Area Mode. The choices are: Single Point, Dynamic 9, 21 or 51pt, 3d tracking and Auto Area. AF-C is a Focus Servo Mode. The choices are AF-C, AF-S, and AF-A. That means continuous servo autofocus, single servo auto focus or automatic switching. Back button focus (when set up correctly) gives you af-c and a psuedo af-s mode depending how you use the button. Is that what you want? Hold the button and get continuous focus. Let the button go and in effect you have af-s mode even though you are still technically in af-c. The downside is you do not get to choose focus priority, you are always in release priority. If you are looking to change the AF Area Mode from single to one of the multipoint modes, no, you can't do that with the fn button. You can do that fairly quickly from the button in the middle of the af/m lever on the front of the camera though. Press button and use front wheel to change area modes. On the d7100, I don't think you can do what is shown in the d500 video above. [/QUOTE]
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Photography Q&A
can I assign the fn button to single point focus as well as continuous focus?
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