Canon launched the brand new 100mm f2.8 L Macro in September 2009. It’s not very often that Canon launches an entirely new lens, most being updates to already existing designs, so this was one that I wanted to check out as soon as I heard about it. There was already a 100mm macro lens but it was not part of the famed Canon L lineup, so what is different in the design of this version to justify inclusion in the L category?
