FAQs For Stage Lighting Gels
What’s The Difference Between A Gel Sheet And A Gel Kit?
A sheet is a single 20″×24″ color in one specific hue, sized to cut down for individual fixtures. A kit bundles multiple related colors or effects, like a diffusion kit or color correction kit, in smaller 12″×12″ swatches, which is useful for testing a palette before committing to full sheets.
What’s The Difference Between Roscolux and Cinegel?
Roscolux is Rosco’s core theatrical color line, built for stage and general-purpose lighting. Cinegel is formulated for film and video work, with a color range and heat resistance suited to HMI and tungsten film lighting. Either can cross over, but each line is optimized for its primary use case.
Do Stage Lighting Gels Work on LED Fixtures?
Yes, though it’s less common, most LED fixtures mix color electronically, so gel is typically reserved for correction (matching color temperature between LED and tungsten sources on the same rig) or for effects gels that LED color mixing can’t replicate, like diffusion or specialty patterns.
How Long Do Gels Last Before They Fade Or Need Replacing?
Gel life depends heavily on heat exposure and fixture wattage; a gel run close to a high-wattage tungsten lamp will shift color and eventually burn out much faster than the same gel on a cooler LED fixture. As a rough guide, expect noticeable fading after 15–75 hours of use on hot tungsten instruments; heat-resistant lines like Cinegel or Thermashield extend that significantly.
What Size Gel Do I Need For My Fixture?
Match the gel size to your fixture’s gel frame or color frame opening; full sheets (20″×24″) can be cut down to fit ellipsoidals, Fresnels, and PARs, while pre-cut kits in 12″×12″ are typically sized for smaller frames or sampling. If you’re unsure of your frame size, check the fixture’s spec sheet or give us a call.
