I recently moved up to MF with an RZ67, and I noticed that for around $600, a used digital back like the Cmost (6.6 MP) can be acquired. I scan my film, and I wanted a larger negative to scan from, but now I am also interested in seeing what the image quality is like from one of these older digital backs. If we forget about the megapixel issue, and they claim you can get up to 20x24 prints out of the images, and a full frame 24x36 (for35) sensor and 14 bit image processing (like the new Canon 40d) is it really worth trying one of these out? I tried to find some image samples, but to no avail. Any thoughts will be greatly appreciated.