Hi, I bought 5 rolls of 35mm Kodak Portra 160VC (and 5 rolls of Kodak T-MAX 400 BW), both expired 11-2005, so I'm wondering is there some way to reduce the color changing and diffraction using color expired film? I'm wondering if there is some way to correct in development, using filters, or i should stay with Photoshop color corection? About BW film, I know this is not the right place, but should i rate the film like etc 200 ISO or smt.? thank you. Stevco.