Quote Originally Posted by PeterB View Post
Thanks Bill. I'm curious as to why films are rated with so much latitude for over exposure but virtually none for under exposure ?

i am sure if you go to forums that deal in astro-photography they have information regarding gross UNDER exposure.
some discussions here on apug have touched upon this sort of thing. what i have read ( here )
it is done by steaming the film in a bath of hydrogen peroxide ( H2O2 ) either before or after exposure
and then developed "normally"... ( whatever that means since my normal is different from ... yours for example )

i have never done this so i can't say how useful it is, or the correct mechanics of it all ... and i don't know if anyone has "charted the curve"

i hope you post the results of your over exposed film ... 7 pages is a long wait