Nikon D300 User Manual page 13

2 Choose aperture and shutter speed.
Rotate the main command dial to choose a shutter speed, and
the sub-command dial to set aperture. Shutter speed can be
set "x 25o" or to values between 30 s and 1/8,000 s, or the
shutter can be held open indefinitely for a long time-exposure
(b_ ,L,L-_, pg. 111). Aperture can be set to values between the
minimum and maximum values for the lens. Check exposure
in the electronic analog exposure displays (see page 111), and
continue to adjust shutter speed and aperture until the
desired exposure is achieved.
Sub-command dial
Setting
aperture
b, l C
Setting
shutter
speed
( ......."_,,,:::v-7I)
A 'JI
Main command dial
3
Frame a
photograph,
focus, and
shoot.
Shutter speed:
1/250 S
Aperture: f/8
[] AF Micro Nikkor Lenses
Provided that an external exposure meter is used, the expos u re ratio need
only be taken into account when the lens aperture ring is used to set
aperture.
110