Nikon D5100, User Manual

Page: 172 / 365

65
t
Mode M (Manual)
In manual exposure mode, you control both shutter speed and aperture. To take
photographs in manual exposure mode:
1
Rotate the mode dial to
M
.
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: choose from
values between 30 s and
1
/
4,000
s or select “Bulb” or “Time” to hold the shutter
open indefinitely for a long time-exposure (
0
66). Aperture is selected by
pressing the N ( E ) button and rotating the command dial: choose from values
between the minimum and maximum for the lens. Shutter speed and aperture
are shown in the viewfinder and information display.
3
Frame a photograph, focus, and shoot.
Shutter speed Aperture
Command
dial
N ( E ) button Command
dial
A
The Exposure Indicator
If a CPU lens is attached and a shutter speed other than “Bulb” or “Time” is selected, the
exposure indicator in the viewfinder (below) and information display shows whether the
photograph would be under- or over-exposed at current settings (the display varies
depending on the options selected for Custom Settings b1,
EV steps for exposure cntrl.
and f5, Reverse indicators ;
0
159, 166). If the limits of the exposure metering system are
exceeded, the indicator will flash.
Optimal exposure Underexposed by
1
/
3
EV Overexposed by over 2 EV
Mode dial