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76 Chapter 5 Adjustments and Settings
Chapter 5 Adjustments and Settings
Light Sources and Color
Temperature
Adjustment of the white balance to match the light
source is essential to ensure correct color rendering.
The color of a light source is indicated as a color
temperature in kelvins (K). It is higher for bluish light,
and lower for reddish light. When the camera is
shipped it is adjusted for use with video lights (halogen
lamps with a color temperature of 3200 K). For use
with other light sources, therefore, adjustment is
required.
First use the FILTER control to set the approximate
color temperature, then carry out white balance
adjustment.
The following table shows typical color temperature
values for different light sources.
Color temperatures of different light sources
Message
Meaning and corrections to be made
If the 5600K button is turned on (lit),
press the button to turn it off. Then retry
the ATW operation.
:C.TEMP.LOW
If the 5600K button is turned off (not lit),
press the button to turn it on (lit). Then
retry the ATW operation.
:C.TEMP.HIGH
White Balance Adjustment
Using the ATW (Auto Tracing
White Balance) Function
The ATW function continuously adjusts the white
balance automatically to adapt to changes in lighting
conditions.
Note
Depending on the shooting conditions, automatic
adjustment may not necessarily give optimum results.
For the best possible results, use the W. BAL switch.
To use the ATW function
Press the ATW button turning the indicator on.
This activates the ATW function, and the ATW
indication appears in the viewfinder.
To disable the ATW function, press the ATW button
again, turning the indicator off.
If the ATW function does not operate correctly
A warning massage appears in the viewfinder as
shown in the table below.
Light source
Natural Artificial
Color temperature (K)
Clear sky 10,000
Light cloud 8,000
Cloudy or rainy
skies
Blue light 7,000
6,000
Fluorescent light
(daylight white)
5,000
Direct sunlight,
noon
Mercury lighting
Fluorescent light
(white)
White light
One hour after
sunrise or
before sunset
Fluorescent light
(warm white)
4,000
3,500
Studio lighting 3,200
Halogen lamps
and video lights
Yellow light 3,000
2,500
Thirty minutes
after sunrise or
before sunset
Incandescent
lighting
Sodium street-
lighting
Sunrise or
sunset
Candlelight Red light 2,000
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