Shutter lag
The point-and-shoot cameras are great, that is, as long as the subject of the photo is not moving very fast.
The compact digital camera can take so long to react after you snap the shutter release button that the moment has passed and the desired image is never captured.
The problem is called shutter lag.
But avoiding it, or minimizing it in the next camera you buy — well, that is a tricky problem.And the problem is, camera makers do not want to tell consumers too much about that.
It is just that shutter lag is too difficult a concept to communicate in ads or marketing materials in stores;it still is much easier to sell consumers on a camera’s price, style, color, image-stabilization abilities, wireless ability or even its many preset shooting modes like fireworks, underwater or dining.
The first problem is that shutter lag is not really shutter lag at all, but processor lag:when the photographer begins to push down the button to snap the picture, sensors in the camera begin to take a series of measurements.Then the image is captured on the processor and sent into memory.
The specifications surrounding lag are not standardized and can be interpreted in various ways. Indeed, there is not even one standard. For instance, one might measure shutter lag in auto focus and another with manual focus, which will be much less.
The shutter-lag problem is not true of all digital cameras. The digital single-lens-reflex (S.L.R.) cameras do not have a problem with shutter lag.
Photographers offer a few tips on capturing action shots with point-and-shoot cameras:
1.If you can anticipate a shot then push the shutter-release button down halfway. Priming the auto-focus gets the process started early. When you push the button down all the way, the camera can process the information more quickly.
2.Another trick is to point the camera to where the action will occur, push halfway, and when the action occurs, push it all the way. That means you do not follow the subject, you follow the event. In other words, if you are tracking a downhill skier slaloming through a series of flags, aim at the flags, not the skier.
3.Camera makers also suggested using the burst mode, which quick-fires a series of photos. Shoot the first one in advance of the event and then you probably will capture the significant moment.
More information: The New York Times
