appendix A
Conversion Units and Scales
Conversion Units
Illuminance
Footcandle | Metercandle (lux) |
1 | 10.76 |
0.0929 | 0 |
Luminace
Cd/square foot | Cd/square meter |
1 | 10.76 |
0.0929 | 0 |
Fahrenheit, Celsius, and Kelvin Temperature Scales
F | C | K | |
9440° | 5230° | 5500 | Photographic daylight |
5300° | 2930° | 3200 | Photographic studio lamps |
2780° | 1530° | 1 800 | Candlelight |
1340° | 727° | 1000 | Minimum for blackbody emission of light |
212° | 100° | 373 | Boiling point of water |
98.6° | 37° | 310 | Body temperature |
68° | 20° | 293 | Typical film development |
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