92 Menu Guide / Custom Settings16: FUNC Button (All Modes)Choose the function performed by the FUNC. button.Option DescriptionISO display(default) The modifi ed value for ISO sensitivity is displayed while the FUNC. button is pressed.Framing grid Press the FUNC. button and rotate the main command dial to turn the grid display inthe viewfinder on and off ( 89).AF-area mode Press the FUNC. button and rotate the main command dial to select AF area mode( 87).Center AF area Press the FUNC. button and rotate the main command dial to choose between nor-mal and wide center AF areas ( 87).FV lock If the built-in flash or an optional SB-800, SB-600, or SB-R200 flash unit is used, flashvalue locks when the FUNC. button is pressed ( 93). Press again to cancel FV lock.Flash off Built-in fl ash and optional Speedlights turn off while the FUNC. button is pressed.Matrix metering Matrix metering is activated while the FUNC. button is pressed (P, S, A, and M modesonly).Center-weighted Center-weighted metering is activated while the FUNC. button is pressed (P, S, A, andM modes only).Spot metering Spot metering is activated while the FUNC. button is pressed (P, S, A, and M modesonly).FV LockThis feature is used to lock flash output, preventing the flash level from changing betweenshots or while recomposing photographs. Flash output is adjusted automatically for anychanges in ISO sensitivity or aperture.FV LockBoth the FUNC. and the AE-L/AF-L button can be used for FV lock. FV lock using the FUNC. button is de-scribed below; to use the AE-L/AF-L button, choose FV lock for Custom Setting 18 (AE-L/AF-L; 94).1 Select FV lock for Custom Setting 16 (FUNC button).2 Raise the flash. In , , , and modes, the flash will pop up au-tomatically as required when the shutter-release button is pressedhalfway. In P, S, A, and M modes, press the button to raise thefl ash.
