Re: REPLACEMENT FOR 4990?
I have used a V700 for a couple of years now.
I have really great results from the scanner. I have made an 8x10 frame out of 4 ply matte board and use that to set the very edges of the 8x10 on to scan. This solves the problems of newton rings. I have had many scanners but this one is by far the best I have used.
I have done a fair amount of medium format scans with the included 6x7 film holders and it does a great job as well.
Best of luck,