I've had the Kenko Auto DG 12mm, 20mm, and 36mm macro extensions tubes for over a year, but I have not used them much. When I bought them, I was very excited but had little experience with macro. I still have little experience with macro. This summer, I experimented with shooting macros of sunflowers and insects, but I was not too fond of the results. The Extension Tubes have no optics but extend the distance between the lens and the…
