Hey All,
I dont know if this really affects what we do however, I thought I would ask. As a beam of light is tilted so that it strikes a surface at an angle, the area illuminated by the beam increases. Since the number of quanta of light in the beam remains constant, the illumination on the surface decreases. This decrease is proportional to the cosine of the angle, which the incident beam makes with a perpendicular to the surface.
So knowing this ....when we place a hair light above and angled down...or a main light high and angled down, Do any of you all worry about this when taking light meter readings or is my scientific mind just in hpyerdrive?
Thanks,
Michael
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