Photo Equipment and Technique
Photos taken with a Canon 7D DSLR body, Canon Speedlight 580EX II (with a Gary Fong diffuser pointed forward), Canon 100mm Macro lens and an Olympus IS/L B-MACRO H.Q. Converter (close-up lens) mounted with a filter ring adapter. Initially, I held a small LED headlamp beside the camera to get sufficient light for manual focusing (by moving the camera, not adjusting the focusing ring which I had preset to the approximate area I wanted to cover). Later, I swapped the headlamp for a pair of LED book lights mounted on each side of the lens. Shutter set manually at 1/200th second; aperture set manually at f-14 to f-18; ISO 200. Speedlight set to ETTL. Shadows, highlights, and exposure adjusted in Adobe Lightroom 4 from Camera RAW originals.
Note that for daylight flash-supported macro photography, I use several alternative variants on this rig, some using the camera's pop-up flash and foil covered panels left and right to provide indirect, diffuse light on the subject. The inspiration for these designs is the superb macro photography and clever macro flash rigs of Art Vaughan. Art is very gracious about sharing designs, part lists, and troubleshooting tips. (Thanks Art!)