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11-Steps Gray Scale Test Chart

11-Steps Gray Scale Test Chart Instructions Operating Manual 11-Steps Gray Scale Test Chart PDF
This 11-Steps Gray Scale Test Chart Instrument are Certified with
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1 Years Warranty (Additional support period of 3 years)

The YE0165 is designed for evaluation the halftone reproduction of 16:9 electronic cameras. Two 11-graduated counter current gray scales are arranged on a gray background (D ≈ 0.56), the gray scale corresponds to the ITU recommendation BT.709.

The output signal of an optimally gamma-corrected camera according to BT.709 generates two counter current, linear step signals.

The contrast range of the gray scale is 40 : 1.

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

Step Density Remission in % Video signal for BT.709 in % Video signal for gamma 0.45 in %
1 0.05 89 100 100
2 0.13 74 91 92
3 0.22 60 82 84
4 0.32 48 73 75
5 0.43 37 64 67
6 0.56 28 55 59
7 0.70 20 46 51
8 0.88 13 37 43
9 1.08 8 28 35
10 1.34 5 19 26
11 1.64* 2 11 19

*The production process for reflective charts allow a maximum printed density of 1.64. The target value for the darkest step is 1.70. Therefore the distance of the last step differ slightly.

Two black fields and a white field are located between the gray scales. The density of the black fields in the middle is D > 3 (remission < 0.1 %), the white field between has a density of 0.05 (remission 89.9%).
Recommended usage:

Adjust the aperture until the lightest patch reaches 100% video signal at the waveform monitor. With an optimally corrected camera according to ITU recommendation BT.709 the darkest patch will reach 10% signal level.

When using this chart with a gamma correction of 0.45 the video signal level for each step will change as listed in the table above.

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FAQs About  Grayscale Charts

a. Users must specify Standard File Name, Sample File Name and Sample Database File Name when first use.

b.Standard File is use to store standard measurement data. Sample File is used to store sample measurement data. Sample Database File is used to store the measured data exported from sample records.

There is no generic mathematical formula for gloss value. Rather, it is measured directly with a gloss meter, which compares how strongly reflected light from a sample matches a standard (typically black glass with a known reflectance).


Yes, we can offer Spectrodensitometer quality certification issued by our lab free of charge, or issued by third-party international inspection Organizations with extra charge, please contact us for confirmation.

A colorimeter or spectrophotometer should be used to measure the color of a solution. The instrument directs light through the liquid and quantifies absorbance at certain wavelengths. The values obtained indicate the color intensity of the solution and, by default, the concentration of the solution.

Colorimeters or spectrophotometers are used to measure liquid color. They measure light coming through or reflecting off the liquid. Readings can be reported as Lab*, RGB, or absorbance units. So that objective color analysis can be used to control quality, or to measure chemical concentration.

The "accuracy" of a colorimeter refers to how closely its measurement results align with the true values, primarily influenced by systematic errors and random errors, how closely its measured color data (e.g., Lab values, density) aligns with the true color properties of a sample or certified standard. Specifically, it includes key indicators such as color coordinate accuracy, luminance accuracy, and data repeatability.

It reflects the instrument’s ability to minimize deviations caused by component variations, environmental factors, or calibration drift—ensuring results reliably represent the actual color, which is critical for quality control and brand consistency in industries like printing, food, textiles, paint and coatings.

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