By Matt York and John Burkhart (Auth.)

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From there, signals move through an amplifier to the record electronics. tries to read this abnormally high value, only to cook its tiny charge meter in the process. When the truck gets to the bottom of the row, it picks up a new charge meter, but until then severe damage can occur. All the readings it currently holds, as well as all subsequent measurements, are wrong. They all read maximum on the charge meter. Something similar occurs when a given area of a CCD receives too much light. The vertical transfer register overloads, muddling all the charges for that row.

Another option is the time-tested technique of breathing on the glass, then wiping with a soft cloth. But limit these emergency procedures to lens filters—not expensive camcorder lenses. You can always buy another lens filter, but replacing the lens on most camcorders is an expensive and complicated proposition. If you’re reading this and simultaneously kicking yourself because you’ve broken Buzz’s cleaning rules for years, hold on before you pitch your expensive optics in the trash heap. Scratched optical coatings are salvageable—it’s possible to remove the coating and spray on a new one.

Developed specifically to address this problem, these nifty gadgets now grace many small, lightweight camcorders. In this chapter, we’ll examine the types of image stabilization systems and how they work. A Short Stability History I suppose that even the cave artists back at the dawn of pre-history had trouble freezing images of fast-moving antelope in their minds before they attempted to draw the beasts accurately on their cave walls. Portrait painters, too, have dealt with the problem of fidgety subjects; perhaps even famed Civil War photographer 28 Matthew Brady cursed the artillery shells shooting past him during his long exposures.

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