HMI's at night
Posted 01 December 2007 - 08:58 PM
Posted 01 December 2007 - 09:49 PM
People use HMI's at night all the time, specifically for the blue-tint you mentioned. But if you want some color other than blue, it doesn't always make sense to start from a color temp of 5600 and add gels to that. For example, if you're trying to match or fill-in sodium vapor street lights you'd usually want to start with tungsten light and gel that, rather than heavily gel a blue source to get orange. And many people use a color temperature of about 4300 for moonlight, which can be achieved by 1/2 CTO on an HMI or 1/2 CTB on tungsten. It just depends on the units you prefer to use, power, and so on.
As for uses of HMI's at night, a horror film I gaffed this summer used "moonlight" of 4300K + White Flame Green. We lit up a vineyard with two 12K HMI's in a condor gelled with 1/2 CTO and WFG. To get the same light level by gelling tungsten would have required more large tungsten units and more power, and probably separate condors to mount the extra lights. This would have cost us major time and cabling between setups.
Posted 01 December 2007 - 10:38 PM
Posted 01 December 2007 - 11:22 PM
Posted 02 December 2007 - 07:38 PM