C: Timers/Ae Lock; C1: Shutter-Release Button Ae-L; C2: Standby Timer - Nikon Df User Manual

c: Timers/AE Lock

c1: Shutter-Release Button AE-L

If On is selected, exposure will lock when the shutter-release
button is pressed halfway.

c2: Standby timer

Choose how long the camera continues to
meter exposure when no operations are
performed. The shutter-speed and aperture
displays in the control panel and viewfinder
turn off automatically when the timer expires.
Choose a shorter standby timer delay for longer battery life.
G button ➜ A Custom Settings menu
G button ➜ A Custom Settings menu
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