Nikon S2J00200401 Custom Setting 20 ISO Step Value, Custom Setting 21 AE-L/AF-L Button, 172

Custom Settings (continued)

CUSTOM

Custom Setting 20: ISO Step Value

By default, adjustments to sensitivity (ISO equivalency) are made in increments equivalent to 1/3 EV (1/3 step). This setting can be used to set the size of the increments to 1/2 or 1 step.

CSM MENU

F20 ISO Step Value
	1/3 Step	OK
	1/2 Step
	1 Step

SETTINGS AND

Option	No.			Description
1/3 Step		Adjustments to sensitivity are made in increments
(default)		equivalent to 1/	3	EV (1/ step).
				3
1/2 Step		Adjustments to sensitivity are made in increments
		equivalent to 1/		EV (1/ step).
			2
				2

OTHER

1 Step

Adjustments to sensitivity are made in increments equivalent to 1 EV (1 step).

MENUS— CUSTOM

Custom Setting 21: AE-L/AF-L Button

By default, both focus and exposure are locked while the AE-L/AF-L button is pressed. Custom Setting 21 controls the behavior of this button as shown below.

CSM MENU

F21 AE-L/AF-L Button

AE/AF lock	OK
AE Lock only
AF Lock only
AE Lock hold

SETTINGS

Option	No.	Description
AE/AF Lock		Both focus and exposure are locked while the AE-L/
(default)		AF-L button is pressed.
AE Lock only		Exposure is locked while the AE-L/AF-L button is
		pressed. Focus is not locked.
AF Lock only		Focus is locked while the AE-L/AF-L button is
		pressed. Exposure is not locked.

Pressing the AE-L/AF-L button locks exposure. Ex-

AE Lock hold posure remains locked until the button is pressed again or the shutter is released.

For more information on:

pg. 62 Sensitivity (ISO equivalency) pg. 78 Focus lock

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