We have discussed this problem several times on this list, so it might be convenient for you to browse the older threads.(posted 8839 days ago)Anyway: Here is a brief description of how avoid drying marks on film: Process as usual up to the final washing. Then DON'T SQUEEGEE! This might give you clean negatives, but it will also give you scratches. Instead, use a wetting agent in distilled or demineralised water. Then run to the kitchen accessories store to buy a small hand centrifuge for lettuce. Put in the reel with the film on one side and a suitable balance on the other. Whip of virtually all of the surface water by spinning the film for about half a minute or so. (To your arms, this half minute may seem an eternity!) There will not be any drop left on the film after this.