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德国爱莎测试卡TE153
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德国爱莎测试卡TE153
编号: ESSER-TE-153
市场价: 0.0
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德国爱莎测试卡,TE153,是一款测试摄像机亮度响应的测试卡,图像比例为4:3。


Two 11-graduated counter current gray scales are arranged on a gray background (D=0.75), the gray scale

being graduated logarithmically.


Related to the densities of the gray scales: gamma = 0.45

Related to the reflectance values (brightness): gamma = 2.2 , that being exactly the reciprocal value of

gamma = 0.45.


The output signal of an optimally gamma-corrected camera yield two 11-graduates counter current linear

step signals. The contrast range of the gray scales is 40 : 1.

The values of the 11-graduated gray scale are as follows:

The density values are based on BaSo4 = 0. Two black fields and a white field are located between the gray

scales, the density of the black filed is D > 2.4 (reflectance < 0.5 %). The density of the white filed is D = 0.05

(reflectance = 89.9 %).