Choose the role played by the Fn button on optional wireless remote controllers equipped with an Fn button. See Custom Setting f1 (Custom control assignment, 0 f1: Custom Control Assignment) for more information.
| q | Preview |
| r | FV lock |
| B | AE/AF lock |
| C | AE lock only |
| D | AE lock (Reset on release) |
| F | AF lock only |
| A | AF-ON |
| h | IDisable/enable |
| 4 | + NEF (RAW) |
| a | Live view * |
| None |
Performs the same function as the camera a button.