Leaping salmon are often out of the water 1 second or less. I have found the Nikon D7000 very, very effective, with little lag time from semi-depressed taking button. Autofocus was on, with ISO at 800, and shutter priority and 1/800 sec - the minimum that works with leaping salmon. Location was far up the western coast of Newfoundland, on the East River, Hawke's Bay, in late June, 2011.