Nikon D300 Benutzerhandbuch

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FV lock is only available with the built-in flash when [TTL] (the default 
option) is selected for Custom Setting e3 ([Flash cntrl for built-in flash], 
pg. 291).

A

FV lock is also available with SB-900, SB-800, SB-600, SB-400, and SB-R200 
flash units (available separately). Set the optional flash to TTL mode (the 
SB-900 and SB-800 can also be used in AA mode; see the flash manual for 
details). While FV lock is in effect, flash output will automatically be 
adjusted for changes in flash zoom head position.

When Commander mode is selected for Custom Setting e3 ([Flash cntrl for 
built-in flash], pg. 291), FV lock can be used with remote SB-900, SB-800, 
SB-600, or SB-R200 flash units if (a) any of the built-in flash, flash group A, 
or flash group B is in TTL mode, or (b) a flash group is composed entirely of 
SB-900 and SB-800 flash units in TTL or AA mode.

A

The metering areas for FV lock when using optional speedlight are as 
follows:

A

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. 305) or 
Custom Setting f6 ([Assign AE-L/AF-L button], pg. 306).

Stand-alone flash unit

i-TTL

4-mm circle in center of frame

AA

Area metered by flash exposure 

meter

Used with other flash 

units (Advanced 

Wireless Lighting)

i-TTL

Entire frame

AA

Area metered by flash exposure 

meter

A (master flash)