Do a little research on a technique called "Smart Sharpening".....uses masks to sharpen just the edges between higher contrast areas, leaving the larger areas that don't really need it alone. Global Unsharp Masking....sharpens EVERYTHING...even grain. I don't know what your particular technique is though either.... maybe it's just the film. Oh yeah, another thing about Smart Sharpening...You can adjust the masks and blur the non-sharpened areas...So it really could be called Smart Shrpening/Blurring.