Mode M (Manual) - Nikon D3100 User Manual

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
indefinitely for a long time-exposure (0 78). 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.
Shutter speed
Command
dial
3
Frame a photograph, focus, and shoot.
A
The Exposure Indicator
If a CPU lens is attached and a shutter speed other than "bulb" is selected, the exposure
indicator in the viewfinder and information display shows whether the photograph would
be under- or over-exposed at current settings (the illustrations below show the display in the
viewfinder). If the limits of the exposure metering system are exceeded, the indicator will
flash.
Optimal exposure
1
/ s or select "bulb" to hold the shutter open
4,000
N(E) button
1
Underexposed by / EV
3
Mode dial
Aperture
Command
dial
Overexposed by over 2 EV
t
77