f4: Assign AE-L/AF-L Button

Choose the role played by the AE-L/AF-Lbutton. This option is available in all shooting modes.

.

 

Option

Description

B

AE/AF lock

Focus and exposure lock while the AE-L/AF-Lbutton is pressed.

(default)

CAE lock only Exposure locks while the AE-L/AF-Lbutton is pressed.

FAF lock only Focus locks while the AE-L/AF-Lbutton is pressed.

Exposure locks when the AE-L/AF-Lbutton is pressed, and remains locked

EAE lock (hold) until the button is pressed a second time or the exposure meters turn off.

A AF-ON

The AE-L/AF-Lbutton initiates autofocus. The shutter-release button can

not be used to focus.

 

 

 

r FV lock

Press the AE-L/AF-Lbutton to lock flash value (built-in flash and SB-900,

SB-800, SB-600, SB-400, and SB-R200 flash units only, pg. 198). Press

 

again to cancel FV lock.

L

200

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Image 220
Nikon D90 F4 Assign AE-L/AF-L Button, 200, Option Description AE/AF lock, Not be used to focus, Again to cancel FV lock