Nikon D300s manual Aperture-Priority Auto, Select exposure, Mode g, Choose an aperture, 109

g: Aperture-Priority Auto

In aperture-priority auto, you choose the aperture while the camera automatically selects the shutter speed that will produce the optimal exposure. To take photographs in aperture-priority auto:

1 Select exposure	Ibutton
mode g.
Press the Ibutton
and rotate the main
command dial until gis
displayed in the
viewfinder and control	Main command dial
panel.

2Choose an aperture.

Rotate the sub-
command dial while
the exposure meters
are on to choose the	Z
desired aperture from Sub-command dial
values between the
minimum and maximum for the lens. Small apertures (high f-
numbers) increase depth of field (see page 105), bringing both
foreground and background into focus. Large apertures (low
f-numbers) soften background details in portraits or other
compositions that emphasize the main subject.

Small aperture (f/36) Large aperture (f/2.8)

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