Handleiding Panasonic NV-DS60B (pagina 59 van 64) (Engels)

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Explanation of Terms

ª Digital Video System

In a digital video system, images and sounds are

converted into digital signals and recorded on a

tape. This complete digital recording is capable of

recording and playback with minimal image and

sound deterioration.

In addition, it automatically records data, such as

Time Code and Date/Time, as digital signals.

Compatibility with S-VHS or VHS Cassettes

Because this Movie Camera employs a digital

system for recording image and sound data, it is

not compatible with conventional S-VHS or VHS

video equipment that employs an analog

recording system.

The size and shape of the Cassette are also

different.

Compatibility with Output Signals

Because AV signal output from the AV signal

output socket is analog (the same as conventional

video systems), this Movie Camera can be

connected with S-VHS or VHS video or a TV for

playback.

ª Focus

Auto Focus Adjustment

The Auto Focus System automatically moves

forward and backward the focusing lens inside the

Movie Camera to bring the subject into focus so

that the subject can be seen clearly.

However, the Auto Focus System does not

function properly for the following subjects or

under the following recording conditions.

Please use the Manual Focus Mode instead.

1) Recording a subject whose one end is

located closer to the Movie Camera and the

other end farther away from it

≥Because Auto Focus makes adjustments at

the centre of an image, it may be impossible

to focus on a subject that is located in both

foreground and background.

2) Recording a subject behind dirty or dusty

glass

≥Because the focus is on the dirty glass, the

subject behind the glass will not be focused.

3) Recording a subject in dark surroundings

≥Because the light information that comes

through the lens decreases considerably, the

Movie Camera cannot focus correctly.

4) Recording a subject that is surrounded by

objects with glossy surfaces or by highly

reflective objects

≥Because the Movie Camera focuses on the

objects with glossy surfaces or on highly

reflective objects, the recording subject may

become blurry.

5) Recording a fast-moving subject

≥Because the focus lens inside moves

mechanically, it cannot keep up with the

fast-moving subject.

6) Recording a subject with little contrast

≥Because the Movie Camera achieves focus

based upon the vertical lines of an image, a

subject with little contrast, such as a white

wall, may become blurry.

ª White Balance Adjustment

Depending on the type of light source, the colours

recorded by the Movie Camera may be affected.

In some cases, images may be recorded with

bluish or reddish hue. To minimize the effect of

light on the subject’s colour, what is called White

Balance Adjustment becomes necessary.

White Balance Adjustment

White Balance Adjustment recognizes the colour

of light and makes adjustment so that the white

colour will become pure white.

Automatic White Balance Adjustment

This Movie Camera stores settings that are

optimal for several kinds of general light sources.

The Movie Camera determines the hue of light

that it receives through the Lens, thereby judging

the recording condition, and selects the closest

hue setting. This function is called Automatic

White Balance Adjustment.

However, since white balance settings for only

several kinds of light sources are stored, the Auto

White Balance Function does not operate properly

when recording occurs under light that is out of the

range of the setup values.

ª Time Code

Time Code signals are data that indicate time

measured in hours, minutes, seconds, and frames

(25 frames per second). If this data is included in a

recording, an address is assigned to each image

on the tape.

≥The Time Code is automatically recorded as a

part of the sub-code at each recording.

≥When a new (previously unrecorded) Cassette is

inserted, the Time Code automatically starts

from zero. If a recorded Cassette is inserted, the

Time Code picks up from the point where the

last scene was recorded. (In this case, when the

Cassette is inserted, the zero display

[0h00m00s00f] may appear, but the Time Code

starts from the previous value.)

B-Eng.book 59 ページ２００３年２月１４日　金曜日　午後２時４３分

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