86 Menu GuideChoose whether exposure locks when the shutter-releasebutton is pressed.Choose how long the camera continues to meter exposurewhen no operations are performed. The shutter-speed andaperture displays in the control panel and viewfinder turn offautomatically when the standby timer expires.Choose a shorter standby timer delay for longer battery life.c: Timers/AE Lockc1: Shutter-Release Button AE-LG button ➜ A Custom Settings menuOption DescriptionO On (half press) Pressing the shutter-release button halfway locksexposure.P On (burst mode) Exposure only locks while the shutter-releasebutton is pressed all the way down.Off Pressing the shutter-release button does not lockexposure.c2: Standby TimerG button ➜ A Custom Settings menu