Final answer:
A Fresnel is a lighting instrument used in stage lighting to produce a soft-edged, controllable beam of light. An ERS is a lighting instrument that produces a focused, hard-edged beam of light. A PAR Can is a lighting fixture that uses sealed beam lamps to generate a concentrated beam of light.
Step-by-step explanation:
A Fresnel is a type of lighting instrument commonly used in stage lighting to produce a soft-edged, controllable beam of light. It consists of a reflector and a lens that allow for the manipulation of the beam size and shape. A
ERS, also known as an Ellipsoidal Reflector Spotlight, is another type of lighting instrument used in stage lighting. It produces a focused, hard-edged beam of light that can be shaped using interchangeable templates called gobos.
A PAR Can is a type of lighting fixture that uses sealed beam lamps to generate a strong, concentrated beam of light. It is commonly used for stage lighting and outdoor events. A gobo is a metal or glass stencil that is placed in front of a lighting fixture to project a pattern or image onto a surface.
A Color Scroller is a device that attaches to a lighting fixture and allows for the changing of colors during a performance. It typically has multiple gel filters that can be scrolled into place.
A Light Plot is a diagram that shows the placement and configuration of lighting fixtures in a performance space. It is used by lighting designers to plan and communicate their ideas to other members of the production team.