Nikon D7200 body - Manual (Page 302)

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b Metering/exposure
b1 ISO sensitivity step value (defaults to 1/3 step)
1/3 step Select the increments used when
making adjustments to ISO sensitivity.
1/2 step
b2 EV steps for exposure cntrl (defaults to 1/3 step)
1/3 step Select the increments used when
making adjustments to shutter speed,
aperture, exposure and flash
compensation, and bracketing.
1/2 step
b3 Easy exposure compensation (defaults to Off)
On (Auto reset) If On (Auto reset) or On is selected,
exposure compensation can be
adjusted in modes P and S by rotating
the sub-command dial or in mode A by
rotating the main command dial.
On
Off
b4 Center-weighted area (defaults to
 8 mm)
 6 mm
Choose the size of the area given the
most weight in center-weighted
metering. If a non-CPU lens is attached,
the size of the area is fixed at 8 mm.
 8 mm
 10 mm
 13 mm
Average
b5 Fine-tune optimal exposure
(defaults to No)
Yes Fine-tune exposure for each metering
method. Higher values produce
brighter exposures, lower values darker
exposures.
No