I found parts for the Epson V500 the 35mm negative holder is here. Encompass Parts Epson 1423040 - Encompass Parts The part # for the 35mm negative holder is #1423040. $4.06 each...I bought two.
Alan it is a very badly laid out site that returns errors even when you click their links. contact them: Contact Information fingers crossed that link works
Here's the link thgat worked and another site that shows the picture. Neither site had these in stock. But I'm confused. THe picture on the second site looks like the 35mm holder that Epson provides with the unit. How is this different or is it the same?