I came across an old box of TMax 100 (4x5) this week -- I had bought it in 1999 on sale because the film was out-of-date -- and discovered it still had 50+ sheets of film in it. So I shot two test images last night. The negs look OK but I haven't scanned them yet. Here's my question -- the 3-minute pre-soak didn't appear to rinse off anything. This is the first time I can recall the water not being discolored. Is the anti-halation dye that new a phenomenon?