Nikon D810 Product Manual - Page 382

Option Description C AE lock only Exposure locks while the Fn button is pressed. Exposure locks when the Fn button is pressed, and D AE lock (Reset on release) remains locked until the button is pressed a second time, the shutter is released, or the standby timer expires. F AF lock only Focus locks while the Fn button is pressed. A AF-ON Pressing the Fn button initiates autofocus. z IDisable/ enable 4 + NEF (RAW) a Live view If the flash is currently off, front-curtain sync will be selected while the Fn button is pressed. If the flash is currently enabled, it will instead be disabled while the Fn button is pressed. If image quality is set to JPEG fine, JPEG normal, or JPEG basic, "RAW" will be displayed in the control panel and an NEF (RAW) copy will be recorded with the next picture taken after the Fn button is pressed (the original image quality setting will be restored when you remove your finger from the shutterrelease button). NEF (RAW) copies are recorded at the settings currently selected for NEF (RAW) recording in the shooting menu (0 295). To exit without recording an NEF (RAW) copy, press the Fn button again. Pressing the Fn button starts and ends live view. None Pressing the button has no effect. 358