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About Metering Systems and Exposure

Metering systems and exposure are important factors for taking pictures. Knowing the characteristics of each factor helps you widen your photographic expression .

• Metering Systems

As the proper combination of shutter speed and aperture for correct exposure is determined according to subject brightness and film sensitivity, measuring subject brightness is very important.

In general, brightness inside the viewfinder is not uniform. The

N65/ N65QO provides two metering systems: Matrix Metering (page 28) and Center-Weighted Metering (page 58). With Matrix Metering, data on scene brightness is detected by the six-segment Matrix sensor. With Center-Weighted Metering, most of the meter'ssensitivity is concentrated on the 12mm-diameter center circle in the viewfinder. With the N65/ N65QO, Matrix Metering is automatically selected when the exposure mode is set to other than Manual and Center-Weighted Metering is selected with Manual exposure mode.

Using 0 - or G-type Nikkor lenses, the N65/ N65QO camera performs 3D Matrix Metering by adding distance information to determine correct exposure.

• Exposure

Light from the subject passes through the lens and exposes the film . Light reaching the film is controlled by the shutter speed and aperture. The proper combination of shutter speed and aperture for subject brightness and film sensitivity results in the correct exposure.

The N65/N65QO's AUTO mode (page 51), Auto-Multi Program (page 52) and Vari-Program (page 36) automatically control shutter speed and aperture. In Shutter-Priority Auto exposure mode (page 54), you can manually set shutter speed and the camera automatically sets the proper aperture. In Aperture-Priority Auto exposure mode (page 56), you can manually set aperture and the camera automatically sets the proper shutter speed. In Manual exposure mode (page 58), you manually set both shutter speed and aperture.

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Nikon 1713, 1714 instruction manual About Metering Systems and Exposure