Ooh, I got the Waterhouse-Hayward technique working with the flatbed scanner; it’s wonderful! Check out what happens when a dead mollusk collaborates with several years of intense surf. [Series intro here.]
Obviously, two sides of the same shell. The first shows a flat face so it’s just lying on the scanner. It wouldn’t lie flat for the second so I had to suspend one end with thread, and indeed when one end’s grounded the other eventually stops oscillating.
Um, I suppose I should record the equipment; it’s a CanoScan 3000F plugged via USB into a white-box running Windows XP and the CanoScan Toolbox software. There’s still room for improvement. I haven’t figured out how to tell the scanner to just scan the corner where the shell is, which means I’m scanning at only 300DPI; the scanner can go way higher, but when you scan the whole 8½x11" area at more than 300DPI, it complains about digital artifacts larger than 100MB. This is good enough for the screen, but if I want to print I’ll need a few hundred more DPI.