Preview Button - Nikon D300 Complete Manual

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of making the assignments using only a button press, or by

using the button in conjunction with the Command dials

Button Press only:

AE lock only

Some settings allow you to choose an option for both press and press+dials. For

example, you can set the button to spot metering and still have it work with dials for

bracketing. But not all combinations are possible. Most settings force you to use the

button either via a single press or via pressing in conjunction with the Command

Thom Hogan's Complete Guide to the Nikon D300

The AE-L/AF-L button acts as a DOF

Preview button

The flash is preflashed once and the

value for flash locked when the AE-

L/AF-L button is pressed; a second

press cancels FV lock [default]

Holding the AE-L/AF-L button locks

both exposure and focus [default]

Holding the AE-L/AF-L button locks