Nikon D7100 Product Manual - Page 284
f4: Assign AE-L/AF-L Button
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f4: Assign AE-L/AF-L Button G button ➜ A Custom Settings menu Choose the role played by the A AE-L/AF-L button, either by itself (Press) or when used in combination with the command dials (Press + command dials). ❚❚ Press Selecting Press displays the following options: Option B AE/AF lock C AE lock only E AE lock (Hold) F AF lock only A AF-ON r FV lock None Description Focus and exposure lock while the A AE-L/AF-L button is pressed. Exposure locks while the A AE-L/AF-L button is pressed. Exposure locks when the A AE-L/AF-L button is pressed, and remains locked until the button is pressed a second time or the standby timer expires. Focus locks while the A AE-L/AF-L button is pressed. The A AE-L/AF-L button initiates autofocus. The shutter-release button can not be used to focus. Press the A AE-L/AF-L button to lock flash value (built-in flash and compatible optional flash units only, 0 125, 305). Press again to cancel FV lock. Pressing the button has no effect. ❚❚ Press + Command Dials Selecting Press + command dials displays the following options: Option Description 5 Choose image area Press the A AE-L/AF-L button and rotate a command dial to choose an image area (0 63). Choose non- w CPU lens number Press the A AE-L/AF-L button and rotate a command dial to choose a lens number specified using the Non-CPU lens data option (0 149). None No operation is performed when the command dials are rotated while the A AE-L/AF-L button is pressed. U 256