photo tuition

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Exposure metering

    Every man has some experience with photographing nowadays: from youngsters to pensioners. Digital technologies made this process so simple that people needn’t go to the photo laboratory even. You have just to wait a minute and you have a ready picture in your hands. It’s bad that colours are not correct, pictures are very similar like Shrovetide pancakes, and soapy. But at the same time you can enlarge the shot slightly, switch on the on-board flashbulb and not pay attention to poor lighting. Great! Photographers are not needed any more! Every person is a photographer of his own!
    That’s right but discouraged people often ask me: «Why can’t I make such photos as you? I have on my pictures either red eyes or blurred image, or faces in the pictures are spotted with glares, or the picture comes in red. Why? ».
    I answer them that this happens because a ‘point and shoot’ camera has poor brains. Its exposure meter, a special device for metering light, “thinks” that there is the same object in front of it every time – middle-grey scale which reflects 18 % of incident light. Approximately the same amount of light is reflected by dry asphalt or sunshined verdure. If camera is pointed at a light house wall which reflects much more light, the “silly automatic device” lets less light pass to the film than required – this is underexposure. It would be better if it didn’t shoot at all. If a photographer decides to shoot a man against the background of a shadowed bush which is almost black, he will get over-exposure. Too much light will pass to the film. This is spoilage too. A photographic film doesn’t stand extremes, it needs a precise metered dose of photons; at this the photons must be of definite quality – colour temperature.
All of us know that in the early morning or at the sunset the sun is red and covers everything around with orange beams. 
 


    1. Sunset in the beach in Rimini. Camera Nikon D 2X





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