Canon PRO-10 Series Manual page 152

Condition
with
Inappropriate
Lighting
Color
Corrected under a warm white lamp
Points to Remember when Setting the Ambient Light
Consider the following points when selecting fluorescent lamps suitable for viewing photos.
Color Temperature
Color Rendering Properties
Brightness
Color Temperature
Color temperature, stated in kelvin (K), is a unit to indicate whether the color tone belongs to warm
colors or cool colors. Values around 5000 to 6000 K indicate white; the lower values indicate warm
colors, and the higher values indicate cool colors.
Commercially available fluorescent lamps can be broadly classified into five types depending on their
color temperature.
Warm White
Color
3000 K
Temperature
Generally, neutral white lamps are recommended for the environment to view photos.
Difference in Appearance by Color Temperature
Neutral White
Appropriate color tone
Color Rendering Properties
Color rendering properties, stated in the general color rendering index (CRI Ra), are the unit to indicate
the reproducibility of the color tone. The maximum value for Ra is 100; the higher the color rendering
White Cool White
3500 K 4200 K
Daylight
Bluish color tone
Bluish color tone
Neutral White Daylight
5000 K 6500 K
Warm White
Yellowish color tone