Color Temperatures of Common Light Sources
Filter Factor
Common Warming and Cooling Filters
Color Temperatures of Common Light Sources
Filter Factor
Common Warming and Cooling Filters
Updated August 23, 2006
This page, and all contents are Copyright © 1996 by Multi Media Work Group
519 Western Ave. Glen Ellyn Il 60137
http://www.mmwg.com/mmwgweb/paul/pho_info.htm
| Approximate Color Temperatures | ||||||
| of Common Light Sources | ||||||
|
KELVIN | MIRED | DAYLIGHT | TUNGSTEN | ||
| TEMP. | # | FILM | FILM | |||
| BALANCE | 182 | 313 | ||||
| MATCH FLAME | 1700 | 588 | -406 | -275 | ||
| CANDLE FLAME | 1800 | 556 | -374 | -243 | B | |
| 40 WATT LIGHT BULB | 2600 | 385 | -203 | -72 | B | |
| 75 WATT LIGHT BULB | 2800 | 357 | -175 | -44 | B | |
| 100 WATT LIGHT BULB | 2900 | 345 | -163 | -32 | B | |
| 200 WATT LIGHT BULB | 3000 | 333 | -151 | -20 | B | |
| SUNLIGHT AT SUNRISE/SET | 3100 | 323 | -141 | -10 | B | |
| QUARTS PHOTOFLOODS | 3200 | 313 | -131 | B | 0 | |
| PHOTO LAMPS | 3400 | 294 | -112 | B | 19 | Y |
| SUNLIGHT 1 HR. AFTER | Y | |||||
| SUNRISE OR BEFORE SET | 3450 | 290 | -108 | B | 23 | Y |
| CLEAR FLASH BULB | 3800 | 263 | -81 | B | 50 | Y |
| SUNLIGHT 2 HR. AFTER | Y | |||||
| SUNRISE OR BEFORE SET | 3900 | 256 | -74 | B | 57 | Y |
| BLUE PHOTOFLOOD LAMP | 4800 | 208 | -26 | B | 105 | Y |
| CARBON ARC LAMP | 5000 | 200 | -18 | B | 113 | Y |
| STD. DAYLIGHT | 5500 | 182 | 0 | 131 | Y | |
| ELECTRONIC FLASH | 6000 | 167 | 15 | Y | 146 | |
| SKY HEAVY OVERCAST | 6500 | 154 | 28 | Y | 159 | |
| SKY LIGHT OVERCAST | 7500 | 133 | 49 | Y | 180 | |
| SKY HAZE BLUE | 9000 | 111 | 71 | Y | 202 | |
| SKY CLEAR | 11000 | 91 | 91 | Y | 222 | |
| DATA COMPILED BY RAY REARDON 2/85 | ||||||
Filters reduce the amount of light reaching the film.
To compensate for filtration you must open the lens according to the filter factor.
| FILTER | ADJUST | FILTER | ADJUST | |||
| FACTOR | f STOP | FACTOR | f STOP | |||
| |
|
|
|
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| 1.25 | + 1/2 | 6 | +2 2/3 | |||
| 1.5 | + 1/3 | 8 | +3 | |||
| 2 | +1 | 10 | +3 1/3 | |||
| 2.5 | +1 1/3 | 12 | +3 2/3 | |||
| 3 | +1 2/3 | 40 | +5 1/3 | |||
| 4 | +2 | 100 | +6 2/3 | |||
| 5 | +2 1/3 | 1000 | +10 |
| BLUE | YELLOW / ORANGE | |||||
| COOLING | WARMING | |||||
| FILTERS | EXPOSURE | FILTERS | EXPOSURE | |||
| CHANGE | CHANGE | |||||
| FILTER# | MIRED # | f STOPS | FILTER# | MIRED # | f STOPS | |
| 80A | -131 | +2 | 81 | 9 | + 1/3 | |
| 80B | -112 | +1 2/3 | 81A | 18 | + 1/3 | |
| 80C | -81 | +1 | 81B | 27 | + 1/3 | |
| 80D | -56 | + 1/3 | 81C | 35 | + 1/3 | |
| 82C | -45 | + 2/3 | 81D | 42 | + 2/3 | |
| 82B | -32 | + 2/3 | 81EF | 52 | + 2/3 | |
| 82A | -21 | + 1/3 | 85C | 80 | + 1/3 | |
| 82 | -10 | + 1/3 | 85B | 131 | + 2/3 | |
| 85 | 112 | + 2/3 |
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Updated August 23, 2006
This page, and all contents are Copyright © 1996 by Multi Media Work Group
519 Western Ave. Glen Ellyn IL 60137
http://www.mmwg.com/rails/pho_info.htm