Using the right combination of shutter speed, aperture, and ISO, the whale bubble feeding pictures, the groups of whales with their mouths open, were shot at 640 and 1000 to freeze the action, and it was a fairly low light.
What is very versitile about this camera, and probably the comparative Nikon, is that I can use either the aperture, shutter speed, or the ISO as the variable. I have other shots where I manually selected an F stop of 8, for depth of field, a shutterspeed of 1000 to stop the action, and set the ISO to auto (kept track of it in the viewfinder) and got good photos.
I went with the Cannon because I couldn't get the lens I wanted with the Nikon.
535i, Monaco, Cream, Light Poplar, Comfort Seats, PP, Nav, ED.