Actually this is possible on the V850. The "holder" for films all have these notches to raise or lower the emulsion vs the glass. I don't know if it helps but I made some test nd, yes, there is a big difference.
Jacques Caron
Le 2017-07-08 à 19:57, "Myron Gochnauer goch@... [QuadtoneRIP]" <QuadtoneRIP@yahoogroups.com> a écrit :
You might find reading this interesting as you search for a solution.......
Good Grief! It is widely accepted that wet mounting improves the scans, but it is surprising that the V600 film holders were so *far* off.Cost can probably explain the lack of on-the-fly focussing on Epson scanners. It does not explain the lack (if there *is* a lack) of a way to tweak the focus by some kind of internal adjustment (a kind of shimming or otherwise moving the lens or CCD). ;At the very least Epson should ensure that focus can be adjusted by shimming the film hold "up" (away from the glass) and never "down".Myron