By combining a 2x telephoto extender, 100mm lens, and 1:1 macro diopter,
it's possible to get some serious magnification. The shots are all hand-held
at ISO 400 or 800, F22, built-in flash. I also had some success
with a +4 diopter alone, but when combined with everything else it ends up
shadowing the subject. Unfortunately I wasn't able to find the hot-shoe
adapter for my ring flash, which would have cleared that problem right up.
If it does turn up, I'm going to take some more photos right away.
Please, don't make too much fun of my soldering technique.