I'm about to begin testing colour negs, but it will probably be months before I have time to report results as I have a lot of things happening. I haven't been in a hurry to pursue it because I've had acceptable results with my V700. It's been a number of years, but I have also tested black and white negatives with DSLRs on a small scale. A higher end scanner will still produce somewhat better results in some cases, so suitability depends on your intended use of the images. I've also had very good success digitizing slides with digital SLRs.

It has very good adjustments, overall better than Vuescan, and is more much more useable for batch scanning. However, I prefer Epson Scan for Epson flatbeds. Note that for a couple of big projects (5000 or more images) I found it worthwhile to cut colour negs as individual frames and put them in slide mounts to facilitate scanning with SF200/210 slide feeders. Vuescan produced better quality than Nikon's scanner drivers, although it was somewhat fiddly to set up.

I've done some very large scanning projects with Vuescan running Nikon film scanners equipped with bulk slide feeders. Need to find a way to do this efficiently.Vuescan works quite well in some applications, particularly for older scanners that lack drivers for current operating systems. even if it means trying 'scanning' with the DSLR. I'm determined to make this work one way or the other. I'm going to go back to the Epson software here and see if that helps streamline. I installed the epson software and then bought VueScan on the advice of a friend.

Vuescan slide scanning