Since this is my first foray into hot light country, I never really noticed different speed ratings for film when shot under hot lights. Thank you for pointing that out. I understand that when I place a colored filter on the lens, I have to adjust exposure but I was not aware that color temperature of light would require compensation. If I place a colored gel over my light source, will that also affect the film speed? I would have thought an ambient light reading would give me a proper reading for the light. Also, I always thought color temperature meters were just used to tell you which color filter to use but I guess they also help calculate film speed. Greg > -----Original Message----- > From: Rev. Sidney Flack [mailto:sgflack@prodigy.net] > > Greg, > > The problem of color temperature in B&W is similar to not applying a > filter factor when using a #8 or #12 Wratten filter. If you > look at the > literature that comes with the film you use, particularly if > it's Kodak, > you should find and indication of a probable change in film speed if > exposed under Tungsten lights. The cause is the warm (2500 - 3000 K) > light temperature. > > With just a little testing you may have enough information to > determine > appropriate film speed to use with your lights without extra > manipulation. > > Peace! > Sidney > > Gregory Fraser wrote: > > I planned on shooting b&w so I thought color temp would be > irrelevent but I read on a couple of web sites that it > actually is a big deal. I suppose if you need the tones > exactly identical from shot to shot it would matter but I > wouldn't think it would be that big a deal for an amateur > like myself. > > > > Greg
