The lens in the 4990 does not move. The focus is fixed. The focal plane is ca 1.5mm.above the glass. The story about the 8x10 scans is simply that Epson assumed resolution requirements wouldn't be too critical since the negative is so large anyway.
I've always used this scanner with the Epson Scan software, currently under Windows 11. I don't see a clear advantage to VueScan personally. I've tried it on a few occasions and just found it clunky.
I've always used this scanner with the Epson Scan software, currently under Windows 11. I don't see a clear advantage to VueScan personally. I've tried it on a few occasions and just found it clunky.
