I have a question about camera settings using flash. I was just playing around with the flash since my camera does not do well inside the house. I have been playing with the shutter speed and I see absolutely no difference in the results changing from 1/100 to my quickest of 1/1000 when using the flash. I am wondering why. My camera does not do well in quality with anything above ISO400. I typically leave it at f/3.5 aperture as I don't have a very tight DOF with this camera. So, I'd like to stay away from the 1/40-1/60 shutter speed the camera usually sets it's self at in Aperture or Program mode, so I set it in manual and tested at various shutter speeds. There is no difference between as I said, 1/100 and 1/1000 seconds. Why?