Panasonic AG-DVC20P User Manual

Others

39

ª

White balance adjustment recognizes the color of light and 
adjusts so the white color will become a pure white. The 
camera-recorder determines the hue of light that comes 
through the lens and white balance sensor, thereby judging the 
recording condition, and selects the closest hue setting. This is 
called automatic white balance adjustment. However, since the 
camera-recorder only stores white color information under 
several light sources, automatic white balance adjustment does 
not function normally under the other light sources. 

Outside of the effective range of automatic white balance 
adjustment, the image will become reddish or bluish. Even 
within the effective range of automatic white balance 
adjustment, the automatic white balance adjustment may not 
function properly if there is more than one light source. For light 
outside the functional auto white balance adjustment range, 
use the manual white balance adjustment mode.
1) The effective range of automatic white balance adjustment 

on this camera-recorder

2) Blue sky
3) TV screen 
4) Cloudy sky (rain)
5) Sunlight
6) White fluorescent lamp
7) 2 hours after sunrise or before sunset
8) 1 hour after sunrise or before sunset
9) Halogen light bulb
10) Incandescent light bulb
11) Sunrise or sunset
12) Candlelight

ª

The image recorded by the camera-recorder may become 
bluish or reddish under the influence of light sources. To avoid 
such phenomena, adjust the white balance.
White balance adjustment determines the white color under 
different light sources. By recognizing which is the white color 
under sunlight and which is the white color under a fluorescent 
lamp, the camera-recorder can adjust the balance among the 
other colors.
Since white color is the reference of all colors (light), the 
camera-recorder can record pictures in a natural hue if it can 
recognize the reference white color. 

ª

Auto focus automatically moves the focusing lens forward and 
backward inside the camera-recorder to bring the subject into 
focus.
Auto focus has the following characteristics
≥Adjusts so that the vertical lines of a subject are seen more 

clearly.

≥Attempts to bring an object with higher contrast into focus.
≥Focuses on the screen center only.
Due to these characteristics, auto focus does not work correctly 
in the following situations. Record pictures in the manual focus 
mode.
Recording a subject with one end located closer to the 
camera-recorder and the other end farther away from it

≥As auto focus adjusts at the center of an image, it may be 

impossible to focus on a subject that is located in both the 
foreground and background.

≥The subject behind the glass will not be focused because 

the focus is on the dirty glass.

≥The recording subject may become blurry because the 

camera-recorder focuses on the objects with glossy 
surfaces or on highly reflective objects.

≥The camera-recorder cannot focus correctly because the 

light information that comes through the lens decreases 
considerably.

≥As the focus lens-inside moves mechanically, it cannot 

keep up with a fast-moving subject.

≥A subject with little contrast, such as a white wall, may 

become blurry because the camera-recorder achieves 
focus based upon the vertical lines of an image.

2)

3)

4)

5)

6)

7)
8)

9)

10)

11)

12)

1)

DVC20_Eng.book  39 ページ  ２００６年４月６日　木曜日　午前１０時１０分