Nikon D3body D3 User's Manual - Page 358

Option Description B AE/AF lock Focus and exposure lock while the Fn button is pressed. C AE lock only Exposure locks while the Fn button is pressed. AE lock D (Reset on release) * Exposure locks when the Fn button is pressed, and remains locked until the button is pressed a second time, the shutter is released, or the exposure meters turn off. E AE lock (Hold) * Exposure locks when the Fn button is pressed, and remains locked until the button is pressed a second time or the exposure meters turn off. F AF lock only Focus locks while the Fn button is pressed. s Flash off The flash will not fire in photos taken while the Fn button is pressed. t Bracketing burst If the Fn button is pressed while exposure or flash bracketing is active in single frame release mode, all shots in the current bracketing program will be taken each time the shutter-release button is pressed. If white balance bracketing is active or continuous release mode (mode CH or CL) is selected, the camera will repeat the bracketing burst while the shutterrelease button is held down (in single frame release mode, white balance bracketing will be repeated at the frame rate for CH release mode). L Matrix metering Matrix metering is activated while the Fn button is pressed. M Centerweighted Center-weighted metering is activated while the Fn button is pressed. N Spot metering Spot metering is activated while the Fn button is pressed. U 332