At 04:19 PM 03/04/2002 -0600, Robert Gries wrote:
>Is there a good method to calculate the combined flash out put of two
>light sources at different outputs? i.e. a T20 next to a T32
Yeah, it's pretty simple.
For the above-stated combination:
[(20^2) + (32^2)]^0.5 =
(400 + 1,024)^0.5 =
1,424^0.5 = approx. 37.7
If you do the same calculation for two T32s, you get approx. 45.3, which is the
output of a T45. This shouldn't be a surprise -- the T45 turns out to have a
flash-head with two T32-style bulbs ganged.
Garth
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