Stobes can vary widely in color depending on the age of the flash tube. Also, any time you modify the lighting with a softbox, umbrella, bounce panel, etc., it will change the color of the light. The older the softbox, the warmer the light.
In the studio where I worked, we used to use strips of Rosco gels (close to, not touching) over the flashtubes to correct the color to within +- 50 degrees Kelvin on the meter. There usually was quite a bit of difference between modified and unmodified light sources.
Last edited by pgomena; 03-04-2007 at 11:07 PM. Click to view previous post history.