Originally posted by tabl10s Can you explain?
I'm not adpo, but here goes:
Generally speaking, the bigger the light source, the better off you are. Straight-on flash is generally flat with harsh shadows because you're hitting the subject square in the face with a teeny little light that casts nasty shadows. Bounced or off-camera flash is better. When you bounce a flash off the ceiling or wall, you're in effect making the light source the size of the ceiling or wall rather than the small light source of the flash itself. This helps to cancel out harsh shadows, and gives a more natural look. If you're using off-camera flash, you're avoiding the flat-in-the-face light, and you can also bounce it or use a modifier (relector, umbrella, softbox, etc.) to make the light bigger.
I have used the on-camera flash in a pinch when I haven't had one of my bounce flashes with me, but I like to avoid it whenever possible. I have a Fong Puffer too. It helps a bit, but it's not a miracle worker.
Cheers,
Bobbo :-)