Summary: I bought this primarily because it has film scanning capabilities, and adapters for 35mm as well as medium format. It has a high resolution and I have been very impressed with the scans I have done (although the negatives come out with a blue tint that has to be adjusted in another program). Also, to do a scan for getting small prints takes about 10 minutes for each frame or set of frames, and if I wanted an even higher resolution it would be 30 minutes!
Summary: This is the third scanner I've purchased in as many years. Even the cheapest scanner works fine for documents but it is very difficult to find a good scanner for film. I'm happy to say that this one does the job very well. The film holders could use a little more explanation but I managed to figure them out by looking at the diagrams. The resolution is outstanding, even better than I had hoped.
Pros: Excellent Software, Good Bit Depth, Good Resolution, Widely Compatible
Summary: As of this writing, there are lots of NOS 4490s on the market at very cheap prices. This is an extraordinary scanner for 120 (medium format film). It is now replaced with the V500. I have used the 4490 to scan images for a book, and an accompanying photo exhibit. My 20x20" prints look superb. Great detail and tonal range. This is one very good scanner.