Panasonic SDR-H280 SDRH280 用户手册

LSQT1363

This is called automatic white balance 
adjustment.
However, since the unit only stores white colour 
information under certain light sources, 
automatic white balance adjustment does not 
function normally under other light sources.

The illustration above shows the range over 
which the auto white balance functions. 
1) The effective range of automatic white 

balance adjustment on this unit

2) Blue sky
3) Cloudy sky (rain)
4) TV screen 
5) Sunlight
6) White fluorescent lamp
7) Halogen light bulb
8) Incandescent light bulb
9) Sunrise or sunset
10) Candlelight

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 automatic 
white balance adjustment range, use the manual 
white balance adjustment mode.

The images recorded by the unit may become 
bluish or reddish under the influence of certain 
light sources. To avoid such phenomena, adjust 
the white balance.

White balance adjustment determines the white 
colour under different light sources. By 
recognising which is the white colour under 
sunlight and which is the white colour under a 
fluorescent light, the unit can adjust the balance 
among the other colours.
Since the white colour is the reference for all the 
colours (that make up light), the unit can record 
pictures in a natural hue if it can recognise the 
reference colour white.

The lens is moved forward or backward 
automatically to bring the subject into focus.

Auto focus has the following characteristics.
≥ Adjusts the focus 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 centre only.

Due to these characteristics, auto focus does not 
work correctly in the following situations. Record 
pictures in the manual focus mode.

Recording distant and close-up objects at the 
same time
Since the unit focuses on whatever is at the 
centre of the screen, it is difficult to bring the 
background into focus when close-up objects are 
placed in focus. When recording people with 
distant mountains in the background, you cannot 
focus on both the subject which is close-up and 
the objects which are in the distance.

Recording a subject behind dirty or dusty 
window
The subject behind the window will not be 
focused because the focus is on the dirty 
window.
Similarly, when recording something on the 
opposite side of a road with heavy traffic, a 
vehicle that happens to pass by may be brought 
into focus.

Recording a subject that is surrounded by 
objects with glossy surfaces or by highly 
reflective objects
Since whatever is shiny or glistens is brought into 
focus, it is hard to focus on the subject to be 

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