For some reason I have always been anti flash. Everything about them is unnatural. I love the subtleties of natural light. I recently saw a photo collection of President Obama by Pete Souza that encouraged me to keep doing what I am doing. I read an interview on Souza and I learned our techniques and camera setups are similar, even though he uses Canon equipment. His reason for using Canon bodies is that the shutter make less noise than Nikons. I never used a Canon before but my D700 does make a lot of noise. Natural light and fast prime lenses get the job done.