Wuzzat?
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- Jan 20, 2010
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Any photographers out there?
I may have a method for using a digital camera as a light meter.
White paper at 70 lux reflects 61% of the incident light.
Set your camera at ISO100 and take a picture of white paper in the incident light level to be measured with your existing lighting in kitchen, family room, whatever.
Convert your shutter speed and f stop of that photo to an exposure value.
http://en.wikipedia.org/wiki/Exposure_value
Convert your exposure value to lux
http://www.intl-lighttech.com/support/calculator
Multiply by 1/0.61.
Upgrade or downgrade your lighting (watts, lumens) to suit.
http://www.personal.psu.edu/users/a/s/asp5045/roomcalclivingroom.htm
Will this work?
I may have a method for using a digital camera as a light meter.
White paper at 70 lux reflects 61% of the incident light.
Set your camera at ISO100 and take a picture of white paper in the incident light level to be measured with your existing lighting in kitchen, family room, whatever.
Convert your shutter speed and f stop of that photo to an exposure value.
http://en.wikipedia.org/wiki/Exposure_value
Convert your exposure value to lux
http://www.intl-lighttech.com/support/calculator
Multiply by 1/0.61.
Upgrade or downgrade your lighting (watts, lumens) to suit.
http://www.personal.psu.edu/users/a/s/asp5045/roomcalclivingroom.htm
Will this work?
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