Learn more →
Who enters the open day from a brightly enlightened room in a cloudy day, hardly realizes that the brightness is suddenly rising on tenfold and more, because the human eye adapts very quickly to a wide variety of lighting differences. It works in a light-flooded snow landscape with more than 100.000 lux and can detect something even in a star clear, moonless night at 0.001 lux.
The contrast is the cause of dafur that troubles daylight is sometimes darker than an enlightened buro, though it is the other way around. On a trust, maybe even foggy day, the brightness differences between the darkest and the brightest details are quite low. In a room with artificial light, however, there are usually deep shadows and thus more contrast. Already the old flamic champions have known that they bring with dark backgrounds more liked light into their paintings. Bright skin flakes and painted candle flames seem to light up in these images.
Modern cameras adapts thanks to bulltered exposure meters expansive quickly and exposure time to different brightness. However, the contrast scope detectable by a sensor generally includes a maximum of nine aperture levels. In the case of the brightest point of the motif 29 = 512 times as much light as of the darkest. However, a scene in the sunlight, however, is already clear to this bandwidth. The episode: depending on the concrete exposure setting, either the shadows are underexposed and thus black or bright images like the sky are covered and thus to a contourless soft flat.