Assigning frequently used functions to buttons and dials (Custom Key/Dial Set.)

still image, movie, slow&quick motion

You can use the custom key function to assign the functions you use most frequently to easily operable buttons and dials. This lets you skip the process of selecting items from MENU, so you can recall the functions more quickly.

You can separately assign functions to custom keys for the still image shooting mode, movie shooting mode, and playback mode.

  • Assignable functions vary depending on the buttons or dials.

You can assign functions to the following buttons and dials.

Illustration indicating the keys to which you can assign desired functions

  1. Custom Button 1
  2. Rear Dial L
  3. MOVIE Button
  4. Rear Dial R
  5. AF-ON Button
  6. Fn/Button
  7. Control Wheel/Center Button/Left Button/Right Button/Down Button
  8. Custom Button 2
  9. Front dial

For details on custom key settings, refer to the following URL:

The following is the procedure for assigning the [Subject Recognition AF] function to the center button.

  1. MENU (Setup) → [Operation Customize][Custom Key/Dial Set.].
    • If you want to assign a function to recall while shooting movies, select [Custom Key/Dial Set.]. If you want to assign a function to recall while playing back images, select [Custom Key Setting].
    • You can also select [Custom Key/Dial Set.] and [Custom Key/Dial Set.] from MENU(Setup) → [Dial Customize].
  2. Move to the [Rear] screen using the top/bottom side of the control wheel. Then, select [Center Button] and press the center of the control wheel.
  3. Select [Subject Recognition AF] using the top/bottom/left/right side of the control wheel, and then press the center.
    • If you press the center button while shooting and eyes are detected, [Subject Recognition AF] will activate and the camera will focus on the eyes. Shoot images while holding down the center button.

To use different functions for the dials/wheel depending on the shooting mode

If you add a check mark to [Separate M mode and other modes.] when assigning functions to the dials/wheel, you can assign different functions for [Manual Exposure] and the other exposure modes ([Intelligent Auto]/[Program Auto]/[Aperture Priority]/[Shutter Priority]).
If you add a check mark to [Separate Flexible Exp. and Intelligent Auto.] when assigning functions with [Custom Key/Dial Set.], you can assign different functions for [Flexible Exp. Mode] and [Intelligent Auto].


  • By pressing a button to which a function can be assigned on the custom key setting screen, you can go to the setting screen for the pressed button (except for some buttons).
  • You can also assign shooting functions to the focus hold button on the lens. However, some lenses do not have a focus hold button.