Originally Posted by msbarnes
I recently pushed Provia 400x 2 stops, I know it's good:
, on Flickr
But since I do not usually shoot color I'm still fiddling around with my preferences for when to use C41 and when to use Slides. So I just wanted to know the general behavior. It seems to be a bit warm but since I don't shoot much color I haven't figured out if it is a color shift or not...and I know nothing about color balance as I'm sure the lighting source makes a difference.
all color films, negative and slide films, are designed to give correct colors at daylight color temperature of 5500° Kelvin.
If you now have a light source with a lower = 'warmer' color temperature (like tungsten light), then your shots will tend to more yellow-red. Because the light with its lower color temperature has more light in the yellow-red wavelenght.
If you shoot at a light with higher color temperature, e.g. 8,000° Kelvin, then your shots will tend to blue, because there is more blue wavelength in the light.
Color film is recording color always correctly in a physical sense.
What is sometimes fooling us is our brain, which did a certain re-balancing to normal daylight color temperature even if the real light is different.
Nevertheless there are differences between films: The Portras e.g. are quite extrem in going to yellow at tungsten light / low color temperature. The Fuji color films are all better in this respect, giving more natural looking colors.
One special thing is fluorescent light sources, which are emitting light in the green spectrum.
With normal color films you therefore get a green color cast under fluorescent light.
Exception: Some Fuji films with the 4th layer technology, which is especially designed for that giving much more natural colors with fluorescent light.
Films with 4th layer technology are e.g. Fuji Pro 400H and Superia 1600.