Gel colors I like
Gels and dichroics might seem antiquated to the new kids on the concert lighting scene, what with the abundance of LED sources floating around the stages these days. The fact remains, however, that as wonderful as LED lights are for their electrical efficiency, it remains very difficult to get certain colors from them because of the narrow-bandwidth nature of their output spectrum. This makes them prone to the phenomenon of metameric failure – where two materials that look the same under one light source (tungsten, say) look very different under a different set of lighting conditions. (Say, the sickly white emitted by an RGB-mixed white.) For the sort of design that I’m normally involved in, this isn’t an issue –… Read More »Gel colors I like