This came up the other day on the photo discussion list at work, where one of the guys pointed out one of the many millions of flame wars on the subject and stated that there had to be one correct answer to the question of how the 1 over focal length rule (meaning if you have a 50mm lens, you need to have your shutter at least at 1/50) applies to digital SLRs with crop-factor.

A classic Kodak film.

Kodak's chromagenic B&W film.

Foma's 400 speed (very optimistically boxed... it's really only about 250-320 most of the time) inexpensive B&W film.

I'm not sure how different the 35mm versions and 120 versions really are. They are coated on different bases. The 35mm version is on a clear base and the 120 version is on a blue base.

Kodak's highest speed film. About 800-1000 true speed, pushes easily to 3200 and beyond.

Ella making arch forms

Ella making arch forms

Desert and mountains in infrared.

The Palace of Fine Arts in San Francisco taken in Infrared.

A lighthouse at night with funky concrete forms along the path

Melinda in her Peacoat

Melinda in the creek, splashing water towards the cameara

Melinda's legs and hand