Nikon N1538 Reference Manual page 152

2
Choose aperture and shutter speed.
Checking the exposure indicator (see below), adjust shutter
speed and aperture. Shutter speed is selected by rotating the
command dial (right for faster speeds, left for slower). To
adjust aperture, keep the E (N) button pressed while
rotating the command dial (left for larger apertures/lower
f-numbers and right for smaller apertures/higher f-numbers).
Shutter speed
Aperture
E (N) button
A
The Exposure Indicator
If a CPU lens is attached (0 305) and a shutter speed other than "Bulb"
or "Time" is selected, the exposure indicator in the viewfinder and
information display shows whether the photograph would be under-
or over-exposed at current settings.
Optimal exposure
124 P, S, A, and M Modes
Command dial
Command dial
1
Underexposed by / EV Overexposed by over 2 EV
3