In the military they teach you to shoot a weapon like a trained killer.. When you're a photographer, you want to kill the shot... Here is some basic advice from an expert marksman who has earned many awards for my marksmanship. These techniques will be especially helpful in low light situation or indoor shots where a flash isn't appropriate and you don't have a tripod. The three basics of marksmanship- 1. Sight picture. You want to frame your target perfectly first and foremost. Once you have accomplished that, you move on to number two. 2. Breathing. There is a natural pause after the exhale where the body is still before the inhale, and this is when you want to take your shot. You can consciously extend this pause and take advantage of it.. If you hold your breath at the top of the inhale or in the middle of either inhale or exhale, you get jittery and move involuntarily.. Of course this involves timing and practice and attention to detail, but it will pay off in spades if you can master this. 3. Trigger squeeze (shutter release). You should press down on your shutter with the meaty part of the pad of your index finger, not the tip, as this will cause you to pull the camera. You should press down with a nice, even force and the shutter release should be a surprise to you. What I mean is that you shouldn't deliberately jam the shutter release down, as this moves the camera. Hope this helps.. Any questions, feel free..