B: Metering/Exposure; B1: Iso Sensitivity Step Value; B2: Ev Steps For Exposure Cntrl - Nikon D7500 Menu Manual

b: Metering/Exposure

b1: ISO Sensitivity Step Value

Select the increments used when making adjustments to ISO
sensitivity. If possible, the current ISO sensitivity setting is
maintained when the step value is changed. If the current ISO
sensitivity setting is not available at the new step value, ISO
sensitivity will be rounded to the nearest available setting.

b2: EV Steps for Exposure Cntrl

Select the increments used when making adjustments to shutter
speed, aperture, exposure and flash compensation, and
bracketing.
G button ➜ A Custom Settings menu
G button ➜ A Custom Settings menu
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Menu Guide