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The No.81B Standard is a Color temperature adjustment filter. Designed to convert the Color characteristics of a light source to balance with the film type in use, they can also be used deliberately to create a warm or cool overall Color cast. This filter is Pale Amber for fine adjustment.
81B decreases color temperature from 3500 - 3200 degrees Kelvin
Suggested Exposure increase: +1/3 stop.
This filter is 4" x 4" (100 x 100mm) x 2mm thick.
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