Cross processing (Xpro)
If you develop slide film as regular color negative film, you can get some really fun effects.
One of the most popular techniques on Lomography.com
is cross processing. This is very simple: you shoot a roll of slide film and develop this as color negative film. Technically speaking: you process it in C-41 chemicals in stead of E-6 chemicals. The result is usually a color shift, varying from subtle to crazy. Often you'll see high contrast and saturation as well.
The exact results differ from roll to roll, but there are some patterns, depending on the brand and type of slide film you use. Some film turns pink, other more green or blue. You can never be 100% sure of an effect, but here are some examples:
Often yields a blue/aqua result.
Tends to be greenish, but can also be a beautiful, vivid blue.
A fairly subtle color shift, high contrast en strong saturation, especially in the reds.
Tungsten film was originally meant to take photos in artificial tungsten light. If you use it in natural daylight, you'll get a color shift. This is further enhanced by cross pocessing. Less light gives you strong pinks, more light yields more natural, but saturated, contrasty images. Still with a pinkish hint though.
Nice, blue-green colors.