Nikon D300 User Manual page 654

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Figure 9-10. Control panel with A-Aperture priority auto

Aperture priority auto

while the D300(S) takes care of the shutter speed for optimal

exposures. With newer AF-S and G lenses, you'll use the

Sub-command dial

aperture from maximum to minimum just by using the

Sub-command dial

Note on Lens Types – If you use an older AF lens with an

aperture ring, set it to the smallest aperture, then use the

the aperture. If you have older non-CPU lenses, you'll have to

use the aperture ring on the lens to control the aperture.

Depth of field (DOF) is an extremely important concept to

understand for photographers. Simply put, it allows you to

control the range of sharp focus in your images. Please check

downloadable

for a document called Understanding Depth of

Field. This document will give a new DSLR user a nice

tutorial on controlling depth of field.

Now, let's examine

dedicated photographer can take complete control of their

mode lets you control the aperture

to select an aperture. You can control the

on the D300(S).

dial, instead of the ring on the lens, to change

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