Cyclorama (theater)

A cyclorama is a large curtain or wall, often concave, positioned at the back of the stage area. It was popularized in the German theater of the 19th century and continues in common usage today in theaters throughout the world. A "cyc" (US theatrical abbreviation) can be made of unbleached canvas (larger versions) or muslin (smaller versions), filled scrim (popularized on Broadway in the 20th century), or seamless translucent plastic (often referred to as "Opera Plastic"). Traditionally it is hung at 0 ullness (flat). When possible, it is stretched on the sides and weighted on the bottom to create as flat and even a surface as possible. As seams tend to interrupt the desirable smooth surface of the cyclorama it is usually constructed from extra-wide material.
See more at Wikipedia.org...