Nikon D3X User Manual page 226

8
Release FV lock.
Press the Fn button to release FV lock. Confirm that the FV lock
icons (P and e) are no longer displayed in the top control
panel and viewfinder.
l
A
Metering
The metering areas for FV lock are as follows:
Speedlight
Stand-alone flash unit
Used with other flash
units (Advanced
Wireless Lighting)
A
See Also
For information on using the depth-of-field preview or AE-L/AF-L button for
FV lock, see Custom Setting f5 ([Assign preview button], pg. 339) or
Custom Setting f6 ([Assign AE-L/AF-L button], pg. 340).
200
Flash mode
i-TTL 5-mm circle in center of frame
Area metered by flash exposure
AA
i-TTL
AA
Area metered by flash exposure
A (master
flash)
Metered area
meter
Entire frame
meter