Everyone knows to get perfect chroma key it is necessary to produce even lighting on the background without shadows from the subject you are filming.
The easiest way to avoid shadows from subject to background is to move the subject away from the background, therefore providing separation. This is fine if you have space for this. For those who need to film in confined spaces, with lighting equipment completely out of the way, in what may be a permanent setup, the dedolight Asymmetric Background Light provides a unique solution.
Various elongated reflectors with different emission angles are used and positioned very carefully, supplemented by an elongated diffuser.
This allows a background to be lit absolutely evenly from top to bottom, with no difference in brightness levels, using a white light, that can be delivered in any colour temperature between 2700K and 6500K. This has great advantages for green screen or blue screen studios, among others. Notably, this system prevents any stray light from falling on the talent or objects positioned up to 15cm away from the background.
The Asymmetric Backlight extends the system concept. It provides soft backlight on the talents or objects and ensures that no stray light falls on the background, Soft, gentle, and adjustable backlights are vital for separating foreground objects from the background. Backlights also support matching the superimposed background with the lighting situation. The Asymmetric Backlight provides the possibility of keeping the intensity and direction of the backlight consistent when talents or objects move sideways or away from the background.
Asymmetric Background Light devices are produced in two lengths of 4 feet / 120 centimetres and 2 feet / 60 centimetres, the later is needed if the studio has a curve that is not 90 degrees but continuous. Also possible are combinations of 3 x 4ft + 2 x 2ft, 2 x 4ft + 4 x 2ft or 1 x 4ft + 6 x 2ft. With these lighting systems, we can perfectly illuminate small studios but also use them in the largest studios in an unlimited manner.
The dedolight Asymmetric Background and Back Lights provides effective chroma key capabilities in confined spaces or large studios; the result is perfectly even chroma key lighting and clean shadowless background, even when there is little separation between subject and background.
