Attached Link: Web Monkey Cross Processing

Misha - For once, it's as easy as the name sounds. :) Cross processing is when you process the film in the "wrong" chemistry. If you shoot slide film, processing it as C41. Shoot print film, process it as E6. All film brands, types and speeds react slightly different to the processing. When done correctly you get these really weird colors. There is probably far less of it today being done because you could create the same type of effect in Photoshop. Also, unless you want a really high contrast effect, don't push the film when you do it. Cross processing kicks the contrast up, so you normally don't want to push (if I'm remembering correctly, you want to overexpose a stop or so to give you a bit more detail in your shadows and give a little bit more saturation). It's a really neat effect when it works. And I'll bet you've seen photos done that way (especially in advertising) without knowing what the process was. Check the link out. Webmonkey has some examples on that page. -=>Donald