(Title inspired by Pink Floyd song, "Careful with that axe, Eugene!!" ). But enough chit-chat, on to the business at hand.
The pictures below are just to illustrate the effect that a flash may have on a picture.
The first picture was taken with the flash bounced off the ceiling. The second one was using natural light.
You can obviously see the flat image in the first pic compared to the 3D effect in the second pic.
Both pictures were taken at about the same time (15 seconds apart) and the same equipment : Nikon D70S, 50mm 1.4 lens. SB600 flash was used for the flash picture.
Hope this little tip will help some of you out there.