James, thank you. Katie, these were taken with a set of Kenko extension tubes which let you use your regular lenses to be able to focus really close to your subjects. I prefer to use them with my primes: the Canon 50mm F1.4, Canon 85mm F1.8, Canon 200mm F2.8L. I find that if you stop down to F9-F16 you get great sharpness and just enough depth of field.

I'd love to have the Canon 100mm F2.8L IS but I find I can get the images I want with my other primes and the Xtubes. If I get more into macro photography than I am now, I'll consider buying it. Glad you like these.

Jim