Canon E 230 - Manual (Page 42)

WhitG BalanCG
( camera Mode)
What Is White Balance?
The human eye can perceive a white
object as white, regardless of the lighting
conditions. With video cameras, however,
the colour temperature of the light source
may cause the colour of the recorded
picture to be different from the actual
colour. White balance is the adjustment
made, when recording, to obtain natural
whites and colours under a variety of light
sources. The camera has 2 systems for
white balance adjustment: auto and lock.
Explanation:
Ck>lour temperature, measured in degrees
Kelvin (K), indicates the reiative redness or
blueness of a light source and is not directly
related to brightness. A light source with a red
cast has a low colour temperature, whereas a
bluish light source has a higher colour
temperature.
Colour Temperature Chart
lO.OOOK
Bluish
9.000K
8,000K
7,000K
Cast
6.000K
5,000K
Adjustable
White Balance
Range
White
4.000K
3,000K
Reddish
Cast
2,000K
1.500K
• Blue sky
• Scene on TV screen
• Cloudy sky
• Sunlight
• White fluorescent light
• 2 hours after sunrise or
before sunset
• 1 hour after sunrise or
before sunset
• Electric halogen light
• 30 minutes after sunrise
or before sunset
• White electric light bulb
• Sunrise, sunset
• Candlelight
Auto White Balance
Auto white balance is set automatically when
camera is turned on, to make white balance
adjustment for normal indoor and outdoor
conditions.
Subjects Not Suitable for Auto
White Balance
42- a
Auto white balance may not work well In the
following instances, and white balance lock will
probably give you better results:
• Subject with one dominant colour, such as
sky, sea or forest.
• Subject for a macro recording, such as a
close-up of a flower.
White Balance Lock
Use white balance lock when you shoot
subjects not suitable for auto white balance.
• White balance lock also works without using a
white object (see p. 43). Set the power zoom
to wide-angle end and press AWB/LOCK
button to adjust for the scene. However, this
is not suitable for scenes with one dominant
colour or for macro recording.
Notes:
• White balance lock clears automatically when in PLAY mode or the camera is turned off.
• Reset white balance again if the light source changes during white balance lock.
• Use white balance lock even under normal lighting conditions to achieve a more precise colour balance.
42