The last camara that I had that shoot instantly was a 35mm one. I worked with 3 digital cameras so far and all of them had a delay between pushing the button and actually taking the photo... the worst of them all was a HP that had a delay of about 1second... (try to take photos of an exact moment with that is impossible) the fuji had 0.2 sec and the sony is instant, but only when not using flash...
How is your camera on this subject?
How is your camera on this subject?