Awhile back someone recommended me, that since I shoot a Fuji GA645 which has a contrasty lens, I should shoot Acros 100 at ISO 80. At least that is what I think I remember being told. Shooting ISO 80 should lift the shadows a bit (which are dark on occasion). One thing I dont understand. If I shoot at ISO 80, does that mean I need to develop differently too? Should I tell the lab that I give this film to develop as an ISO 80? Also, do you agree with the idea to shoot Acros at 80? Thank you very much.