I am going to experiment with making some diffusers for my cheap home depot lights, making them with PVC pipe frames, and stretching white clothe in the center. I was wondering if putting blue cloth in the center would effectively change the color temparature?
I think you'll find that blue cloth with cut so much light that it'll be almost useless. Just spend a little money on CTB gels and you're on the right track.
Ok, thanks for the advice. The reason I wanted to use blue was to have a large surface area to put the light on, but I suppose gelling the light with blue, before it even hits the fabric would work too right? The main purpose here is to have a large diffused source of light. I am also going to spray the cloth with fire retardent.
I've been known to put the gel directly on the front of a softbox. Clip it right to the diffusion panel. It'll eat a lot of light, but you can get a nice effect this way.
use real correction gel on the light. you will probably have problems with accurate color correction with the 'blue sheet' idea. The gel will also act somewhat as a heat block to keep the heat away from the sheet
Ok cool. How much are gels, and what quantity do they come in? rolls, sheets? Also, how much is diffusion paper? I also have one of those cheapo clamp lights that uses like a 100 watt regular bulb, or flourescent bulb, do you think I would have trouble with mounting diffusion and/or gels directly on the front of it when using those low wattages?