For the last few years I have been scanning b&w negs with a home made back light. So when it came time to scan color negs, I broke down and bought a film scanner. I chose a flat bed because I could do several film sizes with the same scanner. All that in mind, I scanned a black and white neg on the new scanner. it was way to contrasty and over exposed after the scan. The neg looked pretty good to me. I remembered that there was no control with the homemade back light so I had several pieces of foggy plastic laying around which I had used to cut the light output from the home made backlight. I stuffed a couple of those into the flatbed between the lite lid and the negative holder. there was a marked improvement in the negative's image output. Now I'm wondering if one couldn't put a texture screen between the negative and the back light and get the same effect that i used to get with sandwiching things in the enlarger. I know you can add them digitally but it would be interesting to use the old technique in a new way.