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lighting terms


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#1 bigal

bigal
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Posted 08 November 2005 - 01:17 PM

i've been doing lighting for about 2-3 years now(theatrical) but never got into the terms and technical stuff. i just mainly went by the basic principles and my eye. so i'm trying to get a grasp on it now that i'm switching to film/video. this is what i understand from the B&H source book: candela-standard unit of light intensity, foot candle- light output in candela per square foot/1 foot candle equals 1 candla per every square foot. now do i have those right? i also get confused with lumen and lux. i have a little understanding but not a whole lot. can some one explain the relationship in these and is there any other terms i need to understand for me to acuratly light a scene and use a light meter? and i also don't fully understand inverse suare law so if anyone knows how to put it into easier terms i'd apriciate that too. thanks.
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