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наука и техника

As earlier photographers did you choose colors for b & W photo?

Here probably it is necessary to speak not about choice of color, and about the sensitivity of photographic film to the spectrum of the image \r\n\r\nTo correction light sensitivity of film used color filters. With their help it was possible to amplify or reduce the influence of certain regions of the spectrum. It turned out that what we see with the naked eye did not correspond to the received image, for Example when shooting in the mountains, the sea landscape with clouds or snow-capped mountains to obtain a good contrast image is not obtained. Black and white photographic film has a higher sensitivity to the ultraviolet region of the spectrum. To reduce this effect using a yellow filters of different density. As a result, on the background of blue sky clearly and clearly stood out of the clouds and the snow-capped mountains.
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