EIA灰度测试卡
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名 称:EIA灰度测试卡
型号:ST-51
品牌:Applied Image
描述:The EIA gray scale pattern is a standard 2" square projection slide. It contains two parallel gray scales. The upper scale has nine nominally equal transmission steps while the lower contains the same number of nominally equal density steps. The transmission values range from 3% to 60%, corresponding to density values of 1.523 and 0.222 respectively. The slide is chrome on glass and densities are achieved by a fine halftone pattern.
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      The EIA gray scale pattern is a standard 2" square projection slide. It contains two parallel gray scales. 

The upper scale has nine nominally equal transmission steps while the lower contains the same number 

of nominally equal density steps. The transmission values range from 3% to 60%, corresponding to density

values of 1。523 and 0。222 respectively。 The slide is chrome on glass and densities are achieved by a

fine halftone pattern。

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