Chromatte is a fabric designed specifically for use as a background for chroma key production. Unlike conventional chroma key fabrics that are usually blue or green in colour, Chromatte is grey to the eye in ambient light. The fabric contains millions of tiny glass beads that act as reflectors, returning any light shone on them back to its source. When the directional light from Reflecmedia's lens-mounted LiteRing hits the Chromatte fabric, it is returned on the same path and back into the camera lens - as such the camera sees the otherwise grey fabric as a perfectly even blue or green background.