Since most of my work is macro photography most of my equipment is for that
purpose. In macro photography you don't need large studio or various
backgrounds (since everything except for the subject is blurred anyway). In
addition, some of my work takes place at the field, so nature provides me the
studio, and all I need is to carry my heavy equipment bag to an interesting
location and "burn some film".
Here is an example of a setup for shooting the eyes of a tarantula: