Here's a trick that I've used successfully where the camera can be on a tripod, and the field of view doesn't need to change often. Start with a SLR that has a leaf shutter. I use the H2D-39. Line up the shot and focus. When the mirror noise doesn't matter, like during applause at a concert, release the mirror. Then take as many pictures as you want with the mirror raised. The leaf shutter is pretty darned quiet if the mirror's not moving. When you want to reframe or refocus, wait for a moment when noise doesn't matter, and lower the mirror.
Lather, rinse, repeat as necessary.