What is a focused light? Mainly used for stage shooting.

Spotlight, also known as focus light, is mainly used for stage shooting. Spotlight is the basic lamp for stage lighting, and its lighting system is mainly composed of concave reflector and condenser. Its characteristics are: bright spot in the middle, clear edge, narrower projection range than floodlight, and light intensity can be adjusted within the projection range. There are two kinds of adjustment: movable light source and movable lens. By adjusting and changing the illumination of the projection plane, the local projection effect can be obtained. Concentrator is generally used for surface light, palm light, side light, column light and top light, and is widely used in stage lighting at present. According to the edge shape formed by the projected light, spotlights can be roughly divided into three types: soft light spotlights, plano-convex spotlights and contour spotlights.