Transmission versus Reflection with photo umbrella’s.
April 15, 2008
Filed under FLASH, LIGHTING, PHOTOGRAPHY
In this lesson, we will look at how the efficiency of a light reflector works. To illustrate this, we will employ the line up of umbrellas from Photoflex: the RUD, a white translucent umbrella, the RUT, a white translucent umbrella with a removable black cover, and the ADW, a white opaque umbrella.
What we mean by the “efficiency” of a reflector is the amount of light that reflects onto our subjects compared to the amount of light that passes through the material. This is important due to many factors, the most important being wear and tear on your gear. A more efficient reflector requires less power to get the results you want and will speed up the recycle times on your flashes enabling you to shoot faster and get the shot you want.
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