This option controls the operation of the main and sub-command dials.
- Reverse rotation
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Reverse the direction of rotation of the command dials when they are used to make adjustments to Exposure compensation and/or Shutter speed/aperture. Highlight options and press 2 to select or deselect, then press J. This setting also applies to the command dials for optional MB-D18 battery packs.
- Change main/sub
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- Exposure setting: If Off is selected, the main command dial controls shutter speed and the sub-command dial controls aperture. If On is selected, the main command dial will control aperture and the sub-command dial shutter speed. If On (Mode A) is selected, the main command dial will be used to set aperture in exposure mode A only.
- Autofocus setting: If On is selected, autofocus mode can be selected by keeping the AF-mode button pressed and rotating the sub-command dial, AF-area mode by keeping the AF-mode button pressed and rotating the main command dial.
These settings also apply to the command dials for the MB-D18.
- Aperture setting
- If Sub-command dial is selected, aperture can only be adjusted with the sub-command dial (or with the main command dial if On is selected for Change main/sub > Exposure setting). If Aperture ring is selected, aperture can only be adjusted with the lens aperture ring and the camera aperture display will show aperture in increments of 1 EV (aperture for type G and E lenses is still set using the sub-command dial). Note that regardless of the setting chosen, the aperture ring must be used to adjust aperture when a non-CPU lens is attached.
- Menus and playback
- If Off is selected, the multi selector is used to choose the picture displayed during full-frame playback, highlight thumbnails, and navigate menus. If On or On (image review excluded) is selected, the main command dial can be used to choose the picture displayed during full-frame playback, move the cursor left or right during thumbnail playback, and move the menu highlight bar up or down. The sub-command dial is used in full-frame playback to skip forward or back according to the option selected for Sub-dial frame advance and in thumbnail playback to page up or down. While menus are displayed, rotating the sub-command dial right displays the sub-menu for the selected option, while rotating it left displays the previous menu. To make a selection, press 2, the center of the multi selector, or J. Select On (image review excluded) to prevent the command dials from being used for playback during image review.
- Sub-dial frame advance
- When On or On (image review excluded) is selected for Menus and playback, the sub-command dial can be rotated during full-frame playback to select a folder, to skip forward or back 10 or 50 frames at a time, or to skip to the next or previous protected image, photo, or movie.