Nikon 3700, 3699, 55 instruction manual Glossary, Exposure bracketing, Exposure Compensation

Glossary

CPU

Central Processing Unit. The electronic component that controls an electronic product's functions.

AF Nikkor (including G- and D-type AF Nikkor) and AI-P-Nikkor lenses have built-in CPUs.

EV

Exposure Value: A number representing the available combinations of shutter speeds and apertures that give the same exposure effect under conditions of similar scene brightness and ISO.

At ISO 100, the combination of a one-second shutter speed and an aperture of f11.4 is defined as EV1 .

The camera can be used only within the EV range of the exposure meter. For example, with the N55, the exposure metering range is from EV1 to EV20 at ISO 100 with an f/1.4 lens.

Exposure bracketing

Shooting the same subject a number of times at a range of different exposures to attain proper exposure. Three shots with metered EV, under EV, and over EV exposure are performed in that order with the N55.

Automatic exposure bracketing is performed with varied shutter speeds and/or apertures.

Exposure Compensation

In a situation such as when your subject is strongly backlit, exposure compensation enables you to intentionally compensate the standard exposure value measured by the camera to create a desired effect. Exposure compensation of -2 EV to +2 EV in 1/2 steps is available with the N55.

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