VIDEO 101

Camera Operation

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Lesson Outline
Introduction
White Balance
Exposure
Focus
Gimmicks
Shutter
Steady-shot




Camera Operation > Shutter


Shutter in action: Use of the shutter is most obvious when things move fast. This clip (shot with a shutter at 1/250th of a second) shows the ceiling fan--but it doesn't look natural. It's kind of stuttering. Play it a couple times if you don't immediately see the shutter effect. On the positive side, if you look at the clip one-frame-at-a-time, (use the right-side buttons) you'll see that each frame has a sharp image of the fan. The blades are NOT blurred. If that's important to you, use a shutter.

I would also classify the shutter control is one of the dumbest gimmicks ever put on a camcorder. OK, I guess I need to explain why. Camcorders don’t really record moving images, instead they record a series of still pictures and play them back really fast--so the images SEEM like they are moving. More specifically, camcorders record 30 still pictures--called "frames"--each second. Put another way, the camcorder takes 1/30th of a second to "grab" each still frame. Now, what if the camcorder spent LESS time grabbing each frame? Say, 1/100th of a second, or 1/1000th? Would it make a difference? Would it enhance the image? No. Yet this is exactly what the shutter control does. In short, the shutter control is a waste of plastic.

Having said that, I suppose there is one rare instance (occurring as often as Halley’s Comet) in which the shutter control would be useful. That is, the shutter control can make slow-motion viewing more clear. So if you want to examine the nuances of Tiger Woods' golf swing in slow-motion, adjusting your camcorder shutter (to say 1/250th) will result sharper images on playback. The images won’t be sharper when you playback at normal speed--ONLY when you playback in slow-motion! In fact, using the shutter control will actually degrade images that are played back at normal speed--which is 99.99 percent of what most people watch. Again, put some black tape over your shutter button (so you won’t be tempted) and forget it!

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Michael Trinklein