Thanks for all the suggestions. I tried again… with a wooly aphid this time! 🙂 I forgot to make use of my dad’s 60′, notwithstanding, the photos did turn out sharper – I think because I used a wider aperture and the bug wasn’t moving. I didn’t use a tripod, but I did rest the camera on the table to steady it.
Too true, homemade extension tubes aren’t as trustworthy. I never trust the joints and have to keep two hands on the camera at all times… Perhaps someday, but for the moment I’ve enjoyed getting creative. Next I want to make an external flash from my onboard one… 🙂