Stone!!!
So it really IS child's play to jump over here from APUG for a scanning question or response. Now I
really don't see what it is that all those guys are constantly whining and crying about. Sheesh.
Just to be able to later claim that I tried to contribute something useful here, I'm an Epson V-750 Pro owner and my biggest problem with it when scanning 8x10 b&w negatives are unexpected faint Newton rings generated on the emulsion side. (Not the base side.)
In other words, I lay the negative down emulsion-to-glass. I use no cover glass, although sometimes I will masking tape the corners down just to hold the thing steady if I later might need to lift the lid. Using past flatbed scanners for smaller formats, the natural unevenness of the gelatin side was always sufficient to break up those interference patterns. Then I just inverted the scan before saving and working with it.
But with the 750 and both HP5+ and FP4+ I'm still getting noticeable interference. This is very irritating. When contact printing traditionally under a heavy glass sheet I always coat the glass with a
very, very fine layer of plain hairspray droplets. These work wonderfully well to create sufficient clearance to break the interference. Plus they show no image degradation, leave no residue on the negative, are reusable with no mess, and are easily cleaned off with isopropyl alcohol.
I'm just not sure I'm ready to start spraying an expensive new scanner, even if I carefully mask it off first...
Ken
P.S. Welcome to DPUG Ken...