TECHNICAL INFORMATION/PHOTOGRAPHY TECHNIQUES
EXPOSURE METERING SYSTEM
The Nikon FA employs through-the-lens (TTL) full aperture exposure metering. This means that light passing through the lens is measured at maximum aperture, thus assuring a bright finder image during shooting. Furthermore, to make exposure measurement easier than ever, the Nikon FA features two types of metering methods–automatic multi-pattern and centerweight- ed. In automatic multi-pattern metering, light from five separate areas of the focusing screen is metered individually so that not only brightness in the central area but also around the outside is measured. This exposure data is then fed into the FA's micro- computer where it is compared with various predetermined metering patterns stored in the memory. Only then is the exposure determined, thus assuring the correct automatic exposure. By just composing the picture and tripping the shutter, you can get good results even in difficult lighting situations where experience and complicated exposure- compensation techniques would be required with conventional centerweighted metering. In regular centerweighted metering, special emphasis is placed on the brightness in the 12mm- diameter central area. So, by placing the main subject in the center of the frame, you can get the correct exposure in most situations. Centerweighted metering is also highly recommended when you want to create special effects, such as high-key or low-key photographs.
Automatic multi-pattern metering
Centerweighted-metering
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