Nikon D300 - Manual (Page 128)

102
Z
Exposure Mode
Exposure mode determines how the camera sets shutter speed
and aperture when adjusting exposure. Four modes are available:
programmed auto (
e), shutter-priority auto (f ), aperture-priority
auto ( g), and manual (h).
A
Lens Types
When using a CPU lens equipped with an aperture ring (pg. 352), lock the
aperture ring at the minimum aperture (highest f-number). Type G lenses
are not equipped with an aperture ring.
Non-CPU lenses can only be used in exposure mode g (aperture-priority
auto) and h (manual). In other modes, exposure mode g is automatically
selected when a non-CPU lens is attached. The exposure mode indicator
(
e or f ) in the control panel will blink and F will be displayed in the
viewfinder.
Mode Description
e
Programmed
auto
(pg. 104)
Camera sets shutter speed and aperture for
optimal exposure. Recommended for snapshots
and in other situations in which there is little time
to adjust camera settings.
f
Shutter-priority
auto
(pg. 106) User chooses shutter speed; camera selects
aperture for best results. Use to freeze or blur
motion.
g
Aperture-
priority auto
(pg. 107)
User chooses aperture; camera selects shutter
speed for best results. Use to blur background for
portraits or bring both foreground and
background into focus for landscape shots.
h
Manual
(pg. 109)
User controls both shutter speed and aperture.
Set shutter speed to “
A” for long time-
exposures.