White
is balanced to the approximate temperature of the tungsten
filament (of a photo bulb) at 3200 degrees Kelvin. Under
photo flood lights, semi-true colors can be captured on
film (I've found that a steady house voltage is elusive
and usually requires color correction in the lab). To use
tungsten film outdoors in natural light, a Wratten-85 compensation
filter must be used to condition sunlight (which would come
out with a thick blue hue over every shot if you forget
the filter). Whenever a filter is used, the amount of light
entering the lens is reduced. It is far more practical to
shoot tungsten film for both indoor and outdoor (with a
W-85 filter) because there is far more daylight to cut with
a filter than there are lights in your light kit. Simply
put, if you only have four lights and you need a fifth,
the last thing you want to do is put a dark filter over
your lens. Use 500T Eastman color negative film for shooting
under artificial light or its equivalent from Agfa or Fuji.
If you're only buying one roll of film for daylight and
tungsten purposes, use a Tungsten film (not daylight) and
get your hands on a Wratten-85 filter fast.
