Efke 25:
Efke 25 is a fine grain film with high contrast. I used it a couple of times, and was not thrilled with it, mostly due to it's high contrast. This is not to say that it is a bad film. George Provost seems to like it for contact printing on to AZO. That process also requires a bit more contrast than normal, so it is a good mix. This film might also be useful for contact printing using the platinum / palladium process as it requires high contrast as well.