Nikon 25215 manual Changing from Manual to Shutter-Priority Auto, Shutter-Speed Lock, Long Exp. NR

Non-CPU Lenses

Exposure mode A (aperture-priority auto) is automatically selected when a non-CPU lens is attached. The exposure mode indicator (S) in the top control panel will blink and A will be displayed in the viewfinder. For more information, see “Aperture-Priority Auto” (90).

Changing from Manual to Shutter-Priority Auto

If you select a shutter speed ofin manual exposure mode and then select shut-

ter-priority auto without changing the shutter speed, the indicator in the shutter- speed display will flash and the shutter can not be released. Rotate the main command dial to select a different shutter speed before shooting.

Exposure Warning

If the camera is unable to produce the correct exposure at the selected shutter speed, the electronic analog exposure display (93) in the viewfinder will show the amount of under- or over-exposure and one of the following indicators will be displayed in the control panel and viewfinder aperture displays:

Indicator Description

Subject too bright. Choose faster shutter speed or lower sensitivity (ISO equivalency; 52), or use optional Neutral Density (ND) filter.

Subject too dark. Choose slower shutter speed or higher sensitivity (ISO equivalency; 52), or use optional Speedlight.

Shutter-Speed Lock

Shutter speed can be locked at the selected setting ( 94).

Long Exp. NR ( 173)

To reduce noise at shutter speeds of about ½ s or slower, select On for the Long exp. NR option in the shooting menu. Note that noise and color distortion increase with temperature.

b3—EV Step ( 189)

This option controls whether changes to shutter speed and aperture are made in incre- ments equivalent to 1/3 EV (the default setting), ½ EV, or 1 EV.

f5—Command Dials >Change Main/Sub ( 206)

This option can be used to reverse the roles of the command dials so that the sub-com- mand dial controls shutter speed, while the main command dial controls aperture.

Taking Photographs—Exposure

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