I worked at a Navy Laboratory for about 40 years. At a pre-retirement seminar, about 5 years before retiring, I was told that the time to start developing interests and deciding what I would do in retirement was then, not after retirement. So I picked up my camera and started shooting again.
I was a Canon shooter for a long time. About 4 years ago, I was sitting in the back of a helicopter with two Canon cameras, with heavy lenses, hanging around my neck. I decided that there had to be a better way. So, I gave up my Canon gear and moved to Olympus micro-four-thirds cameras. In most ways, I find them superior. I have never looked back or regretted my decision to switch.
Originally I had considered myself to be a nature photographer. In the last several years, I have become increasingly interested in urban and street photography. Having said that, I tend to shoot what I see in front of me, wherever I may be, whatever the subject may be. Check out my gallery (just starting to populate) and my website to see what I am shooting these days.