Although the NEX5 is not yet a perfect system for macro photography, I really enjoyed the ringflash project. So I decided to make a bigger version for the my DSLR (sony a100). I have two macro lenses for this camera, a minolta 100m f2.8 macro that is one of the finest piece of glass. I also like my sigma f2.8 50mm macro but the 100mm macro is more versatile and a bit bigger challenge to make a ringflash for it, due to the longer subject to lens distance. I had to use a bigger diameter tube to mount the fibers on it and tried to make the brunches of fibers adjustable. I'm still thinking how to make it appropriate for closer distance, when I use it for supermacro.
Few days ago I finished the Big Brother: