Nikon Nikon N75 instruction manual Glossary

Glossary

CPU

Central Processing Unit. The electronic component that controls an electronic product'sfunctions. AF Nikkor (including G- and O-type AF Nikkor) and AI-P-Nikkor lenses have built-in CPUs.

Depth of Field

See the column on page 102.

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 f/1.4 is defined as EV1 .

The camera can be used only within the EV range of the exposure meter. For example, with the N7S/N7SQO, the exposure metering range is from EV1 to EV20 at ISO 100 with an f/1.4 lens.

Exposure

See the column on page 32.

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 N7SIN7SQO.

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 -3 EV to +3 EV in 1/2 steps is available with the N7SIN7SQO.

Flash shooting distance range The distance range over which a flash can effectively provide light. Flash shooting distance range is controlled by the amount of flash output available. Each automatic Speedlight'sflash output varies from maximum duration to minimum duration. Close-up subjects will require lower (to minimum) output, while more distant subjects will require more light up to the maximum output.

The flash shooting distance range varies with the aperture, film speed, etc.

Flash synchronization	~
Timing of the flash so it coincides with release of	_lliI
the camera'sshutter. There are two types of
synchronization: Front-Curtain Sync, which fires the
flash at the start of the exposure, and Rear-Curtain
Sync, which fires the flash at the end of the	2
exposure.
Flash sync speed
Shutter speed at which the entire film frame is
exposed when the flash is fired in flash shooting.
The N7S/N7SQO'sflash sync speed is 1/90 sec. or
slower.

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