Alex Wild, author of Myrmecos, recently presented a seminar regarding bee macrophotography for the Illinois State Beekeepers Association.
The PowerPoint is online and is excellent. It is accessible at http://www.alexanderwild.com/Other/Better-Bee-Photography/14529191_y6ZG7#1079273547_kSVcX. It is well worth viewing.
It really is a superb presentation – thanks for posting the link.