Hi snathan, thanks for comment my macro photos. For your setup, does your camera Canon SX100 support lens adapter ? Lens adapter allows you to fix add-on filter like closeup. It would be better to show me some URLs on SX100. With add-on filter, you are able to capture greater magnification. Another setup is slave flash. Flash is important for macro photography esp. fill-in flash to bright up the shadow areas to bring out the details.
Regards
Regards