It was shown on the Gadget show how to roughly test the shutter lag on you camera. Get some paper and make a pointer put it on a turntable at 33 1/3 rmp. Have the pointer pointing outwards. When the pointer reaches the 12oclock position click the camera and see where the picture is taken. I just tested mine and here are the calculations 60/33.33 equals 1.8 seconds per rev. as mine was about 7.5 minutes position on the turntable(1.8/60)*7.5 equals .225 of a second lag.