South Bay Camera Club Film & Digital Photography
South Bay Camera Club - Redondo Beach California Photography By: Bill Berry Photography By: Fred Gutman Photography By: Frank Goroszko
 
   
South Bay Camera Club Film & Digital Photography
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Color Temperature and Light Source

By Thom Bell -


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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