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Nikon n65 User Manual

Page 103

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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’s flash 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 the camera’s shutter. 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
exposure.

Flash sync speed

Shutter speed at which the entire film frame is exposed when the flash is fired in
flash shooting. The N65/N65QD’s flash sync speed is 1/90 sec. or slower.

Flexible Program

Flexible Program function temporarily shifts an automatically selected shutter

speed/aperture combination while maintaining correct exposure. That is, the
desired shutter speed or aperture can be selected in Auto-Multi Program.

f-number
The f-number represents the aperture value and is calculated from lens’ focal

length divided by the effective aperture opening. The standard numbers for

calibration are 1, 1.4, 2, 2.8, 4, 5.6, 8, 11, 16, 22, 32, etc.

The smallest f-number is called maximum aperture and the largest f-number is

called minimum aperture. Lenses with large maximum apertures (smaller f-
numbers) are ‘fast’ lenses that allow photographers to use faster shutter speeds in

dim light. Lenses with smaller maximum apertures (larger f-numbers) allow the use

of lower shutter speeds for available light but are also lighter and smaller than

faster lenses.

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