Nikon N70 instruction manual 126

Hyperfocal distance

The closest point a photographer can focus on where the depth of field includes infinity. When the lens is focused for hyperfocal distance, the deepest depth of field, covering from 1/2 the hyperfocal distance to infinity, can be obtained at each f/stop. The longer the focal length, the longer the hyperfocal distance; the smaller the aperture (the larger the f/number), the shorter the hyperfocal distance.

ISO film speed

The intemational standard for representing film sensitivity. The higher the number, the greater the sensitivity, and vice versa. A film speed of ISO 200 is twice as sensitive as ISO 100, and half that of ISO 400 film.

Matrix metering system

An advanced camera light metering system using a multi- segment sensor and computer; available in the N70 and other Nikon SLRs cameras.

When N70 camera is used with O-type AF Nikkor lenses, 3D Matrix Metering will be performed .

Monitor Pre-flash(es)

When performing Automatic Balanced Fill-Flash with TIL Multi Sensor, the N70'sbuilt-in flash/dedicated Nikon Speedlight fires a series of scarcely visible preflashes to enable the camera'scomputer to pre-analyze the scene. The TIL Multi Sensor inside the camera body reads the amount of reflected light, then the camera'smicrocomputer determines the area of

the TIL sensor to be used for flash output control and adjusts the flash output level. The Monitor Pre-flashes are visible but not recognizable.

Rear-Curtain Sync

Flash fires an instant before the second (rear) curtain of the focal plane shutter begins to move. When slow shutter speeds are used, this feature can create a blur effect from the ambient light, i.e., a flowing-light pattems following a moving subject with subject movement frozen at the end of the light flow. (See "Front-Curtain Sync".)

Single Servo AF

Once the subject is in focus, focus is locked. Useful for recomposing the picture.

Slow Sync

A flash technique for using the flash at a slow shutter speed. Flash shooting in dim light or at night at a fast shutter speed often results in a flash-illuminated subject against a dark background. Using a slower shutter speed with the flash brings out the background details in the picture. Use of a slow shutter speed with Rear-Curtain Sync is particularly effective for illustrating the movement of a stream of light.

The N70'sSlow Sync mode extends the automatically controlled shutter speed range (in Programmed Auto and Aperture-Priority Auto) down to 30 sec.

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