Late afternoon winter light streamed sideways through the window to illuminate these tulips. Once I remembered to open up the lens to blur the background (a bedsheet hanging on the wall), I got some good results. I used HDR in somewhat of a non-traditional way- to fill in the harsh shadows from the sidelight. I think a flash is the conventional way to achieve the same effect.
Technical Data: Canon 7D; Canon EF-S 60mm f/2.8 Macro USM; f/2.8 at 1/400, 1/200, 1/100, 1/25, 1/13, and 1/6; ISO 100; Photomatix Pro.