Labels:text | screenshot | newspaper OCR: Almost all modern 35 mm cameras have metering system. Medium format cameras usually have a metering prism as an .- expensive - extra. early, and modern simple systems averaged the light on the viewing towards screen. next came systems that were biased the bottom of the effect of the sky. the picture to negate have intelligent Modern systems often From general patterns as on the left. data the designer produces a program that averages the reading from each segment with any appropriate bias. Accurate metering is an absolue MUST. If the meter reading is incorrect, then the print possible. There is some leeway with negative films or slide is unlikely to be of the best quality and in those cases, error toward over exposure is best handled. Slide film exposure is another an matter. The picture shows a rough simulation of a viewfinder. The full screen is for modern pattern metering - the cameras computer calculates the best exposure. It is also possible to use a central area this may meter 10% of the subject. The small area is for "partial" system - the larger spot metering - 1 or 2 %. This can be extremely accurate, but must be used with accumulated experience. Metering from the right toned area is critical MENU NEXT PREV SPOT EXP TEXT MODE FLASH
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