I'm a scientist working in the biotech industry, although it's been quite a few years since I've been at the bench. I used to do a lot of microscopy, and I spent a lot of time taking scientific pictures.
Photography is purely a hobby. I started with film SLRs in the pre-autofocus days, and after a long hiatus with only point-and-shoots, I began shooting with dSLRs in 2009 and MILCs in 2013.