INTRODUCTION
Condensation
•If the unit has been cooled down in a cold place and is then carried to a warm place, the moisture contained in the warm air may adhere to the head drum or tape guides and be cooled into water droplets. This phenomenon is referred to as condensation (dewing). When this occurs, the head drum and tape guides are covered with droplets allowing the tape to be stuck to them, leading to tape damage.
Characteristic CCD Phenomena
Smear and Blooming
Due to the physical structure of a CCD it is possible to induce vertical streaking (called “smear”) when shooting an extremely bright light source. Another effect is the expansion of light around a bright light or object (called “blooming”).
The CCD employed in this unit is characterized by inducing very little smear or blooming. Nevertheless, please take note
•Condensation occurs in the following cases:
•When the unit is suddenly moved from a cold place to a warm place.
•When a room heater has just
started or when the unit is exposed directly to cold air from an air con- ditioner.
•When the unit is placed in a very humid place.
Head drum
Video tape
that smear or blooming may be induced when shooting a bright light source.
Smear
Vertical pale streaking appearing at high luminous object
High luminous object (Electric light, sunlight, etc.)
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| Blurring in highlight |
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Do not leave the videocassette inserted when moving the camera under conditions where the temperature environ- ment changes.
After moving the unit, do not use until the internal parts have stabilized.
•“CONDENSATION ON DRUM” is displayed on the LCD monitor and in the viewfinder when condensation occurs in this unit.
Keep the power on until the warning message disappears.
•Pay attention to condensation even before the condensa- tion indication appears.
As condensation forms gradually, the condensation indica- tion may not appear for the first
In an extremely cold place, the condensation could freeze and turn into frost. In such a case, it takes an additional
•To prevent condensation
When moving the unit from one place to another where the temperatures are greatly deferent, first remove the video- cassette, place the unit in a tightly sealed vinyl bag, and then move it to a new environment.
To ensure no condensation occurs, allow the temperature of the unit in the bag to reach that of the new environment before using it.
Moire or Aliasing
Shooting stripes or fine patterns may cause a jagged effect or a banding in fine mesh patterns.
White dots
High temperatures can cause CCD sensor pixels to produce the effect of white dots in the image. This condition is conspic- uous especially when gain is applied.
This is a characteristic of the
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