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.

LCD

Liquid Crystal Display. The N90 has two: the panel on top of the camera body and inside the viewfinder.

Manual flash

Flash output is controlled manually in the manual flash mode, while flash output power varies automatically according to the selected aperture in the auto flash mode, Some Speedlights including the Nikon S8-25, S8-24 and S8-20 provide selectable manual outputs (full, 1/2, 1/4, 1/S, 1/16, etc.), while others provide full manual output only,

Matrix metering system

An advanced camera light metering system using a multi- segment sensor and computer; available in the N90 and other Nikon SLRs such as the Nikon F-601/N6006, F-601 M/N6000, F-401 xlN5005, F4-series and F-S01 s/ NSOOSs cameras,

Release-Priority for autofocus

Shutter can be released anytime (Le" even when subject is not in focus), Convenient so you do not miss an opportunity to take a picture and are not concemed with absolute focusing precision,

With N90 camera body, Release-Priority is given to Continuous Servo AF while Focus-Priority is given to Single Servo AF. However, the Electronic Organizer can change the priority to perform Focus-Priority Continuous Servo AF or Release-Priority Single Servo AF,

Single Servo AF

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

SLR

Single Lens Reflex. A type of camera in which you look through the camera's lens as you view through the cameras viewfinder. Other camera functions, such as light metering and flash control, also operate through the camera's lens.

TTL

Through-the-Lens. Most SLR cameras have built-in meters which measure light after it has passed through the lens, a feature that enables exposure readings to be taken from the actual image about to be recorded on film , whatever the lens angle of view and regardless of whether a filter is used or not.

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Nikon N90 ISO film speed, Manual flash, Matrix metering system, Release-Priority for autofocus, Single Servo AF