Nikon D60BODY Shooting in a, b, c, and dModes, Shutter Speed and Aperture, Lens Aperture Ring

a, b, c, and dModes

Shooting in a, b, c, and dModes

a, b, c, and dmodes offer a differing degrees of control over shutter speed and aperture. Choose the mode best suited to the situation.

Mode Description

Camera sets shutter speed and aperture for optimal exposure.

aProgrammed auto (A 41) Recommended for snapshots and in other situations in which there is little time to adjust camera settings.

bUser chooses shutter speed; camera selects aperture for best

Shutter-priority auto (A 42) results. Use to freeze or blur motion.

c	Aperture-priority auto	User chooses aperture; camera selects shutter speed for best
		results. Use to blur background or bring both foreground and
	(A43)	background into focus.
d	Manual (A 44)	User controls both shutter speed and aperture. Set shutter
		speed to “bulb” for long time-exposures.

Shutter Speed and Aperture

The same exposure can be achieved with different combinations of shutter speed and aperture, allowing you to freeze or blur motion and control depth of field. The following figure shows how shutter speed and aperture affect exposure.

Shutter speed Aperture

Fast shutter speed	Small aperture (large f-number)
1/1,600 s	f/36

Slow shutter speed	Large aperture (small f-number)
1 s	f/3

If the ISO sensitivity setting is changed (A 53, 111), the range of shutter speed and aperture settings that will achieve optimal exposure also changes.

CLens Aperture Ring

When using a CPU lens equipped with an aperture ring, lock the aperture ring at the minimum aperture (highest f-number). Type G lenses are not equipped with an aperture ring. When a CPU

40lens is mounted, adjust the aperture from the camera.