How much do you need exposure-meter in the photography?
Free-standing measuring instruments help the camera to perceive luminous flux properly and without distortion, and to fit the image to the lighting parameters. Article about portrait lenses tells about these features and also about some characteristics of the photographic lenses.
Initially, professional photographers have used empirical research to measure various characteristics of light. Then, a lot of instruments, which can measure the intensity of the brightest and darkest areas of the image, came into service, and the professional photographer selected the average value, which would be the most optimum for the best picture.
In the latest models of digital cameras exposure-meter becomes an element of camera’s design. However, a true professional photographer will surely use a portable external exposure-meter to achieve optimal shooting. Selenium exposure-meter is still less sensitive instrument and, therefore, mobile photographic exposure-meters on CdS (photo resistors and silicon light emitting diode) have been designed to replace them.
People began to use a so-called TTL metering in cameras, when the sensor is located behind the lens meter. But, nevertheless, a real photographer, who has a long experience, yet often takes advantage of its own store of knowledge. Not one, even the most modern technology can use all this wealth of special effects, make a real photographic masterpiece from a picture.