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Color Temperature and Light Source
By Thom Bell -
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Light Source |
Color Temperature (K)* |
MIRED
Shift
|
|
Skylight |
12000 K to 18000 K |
+100 K+ |
|
Overcast Sky |
7000 K |
+40 K |
|
Photographic Daylight |
5500 K |
-0 K |
|
Flash (electronic, bulbs, cubes) |
5500 K
|
-0 K |
|
White-flame carbon arc |
5000 K |
-20 K |
500-watt, 3400 K photolamp
(approx 27.0 lumens/watt) |
3400 K |
-110 K
|
500-watt, 3200 K tungsten lamp
(approx 27.0 lumens/watt) |
3200 K |
-130 K |
200-watt general service
(approx 20.0 lumens/watt) |
2980 K |
-150 K |
100-watt general service
(approx 17.5 luments/watt) |
2900 K |
-160 K |
75-watt general service
(approx 15.4 lumens/watt) |
2820 K |
-171 K |
*Color temps measured in degrees Kelvin (K). Only light sources emitting a continuous spectrum have light output measured in terms of color temperature and MIRED
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