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Vertex HGSE
Grey Scale Chart (9 Step Gamma
Compensated) 16:9/4:3,
Discontinued

• (16:9, 4:3)
• Chart size 10" x 16½"

Original standard in U.S. for setting light response characteristics of TV cameras. Use for adjusting dynamic range and for balancing R, G and B channels for correct color reproduction. Chart consists of 2 sets of 9 neutral grey patches on a uniform grey background. Reflectances range from 3% to 60% in accordance with RS-170 (Logarithmic 2 law = approx. 1/2 f/stop per step). Dead black patch (R < 0.5%) establishes accurate black level and for use in setting flare compensation.