Just a quick post today, I'll provide more background on this later...

Technical Data: Canon EOS 7D, Canon EF 100mm f/2.8L Macro IS USM with Yellow 12 Filter and unknown extension tubes, 1/120 sec at f/5. Image Stabilization on. ISO 800. Canon Speedlight 580EX II flash in auto mode and special fluorescence excitation filter. RAW processing in Adobe Camera Raw.

- Bill