Choose the role assigned to the J button in photo mode and during playback.
Shooting mode: Choose from the options below. Regardless of the option selected, the J button can be used for focus tracking when auto-area AF is selected for AF-area mode.
Option Description K Select center focus point Pressing J selects the center focus point. p Zoom on/off Press J to zoom the display in on the area around the current focus point (to choose the zoom ratio, highlight Zoom on/off and press 2). Press J again to return to the previous display. None Pressing J during shooting has no effect.
Playback mode: Choose from the options below. Regardless of the option selected, pressing J when a movie is displayed full frame starts movie playback.
Option Description n Thumbnail on/off Toggle between full-frame and thumbnail playback. o View histograms In both full-frame and thumbnail playback, a histogram is displayed while the J button is pressed. p Zoom on/off Toggle between full-frame or thumbnail playback and playback zoom (to choose the zoom ratio, highlight Zoom on/off and press 2). The zoom display is centered on the active focus point. u Choose folder A folder-selection dialog will be displayed; highlight a folder and press J to view the pictures in the selected folder.