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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 colorimeter sends light through a solution and measures the amount that is absorbed. It computes the absorbance by comparing the intensity of light before and after passing through. The greater the concentration of the color, the greater is the absorption of the light. It is also possible to quantify the color of the solution.


Who are we? Threenh Technology: 22-Year Professional Color Measurement Solution Provider

Threenh Technology is a Chinese professional manufacturer with 22 years of industry experience, specializing in the field of color measurement and surface gloss detection. Integrating research and development, design, production, marketing, and sales, the company takes technological innovation as its core and is committed to providing global customers with high-precision and intelligent testing instruments as well as professional solutions.


 A gloss test gauges the reflective quality of a surface by casting light at a fixed angle and measuring the amount reflected. It defines the level of shine or dullness of a surface, and it is very crucial in coatings, automotive, and product finishing


Colorimeters is a color measurement device that are used to capture, communicate, and evaluate color. Colorimeters are more affordable, portable, and easier to use, making them a suitable choice for basic color measurement applications, ideal for quick and routine tests.

spectrophotometers offer higher precision and comprehensive data analysis, are better for research, development, and when dealing with complex or highly precise requirements. The biggest difference is in capability and usage. Spectrophotometers are incredibly powerful and can offer more in-depth color measurements than a colorimeter, such as spectral data.

Colorimeters are primarily used for color quality control, while spectrophotometers are used for analysis and formulation. You can choose the appropriate color measurement equipment according to your application needs.


Consistency in calibration is important to account for imbalances arising from wear and tear of the probe, probe pressure, variation from the environment, and fluctuations in daily usage. This is also necessary to maintain the best quality to various international standards.


For professional paint matching (decorative, automotive, industrial, metallic/pearlescent), these are the top-performing spectrophotometers from 3nh — optimized for formulation, batch consistency, metamerism control, and field/shop matching:


1. 3nh YS6060 Premium Benchtop (Best Lab & Formulation)

  • d/8° sphere, SCI/SCE, UV control (360–780nm)

  • ΔE*ab ≤ 0.015, IIA ≤ 0.2 — ultra-precise for R&D

  • Multi-apertures (Φ4/8/15/25.4mm)

  • Transmission + reflection modes

  • Best for: Paint lab formulation, fluorescent pigments, color standardization

2. 3nh TS7700 Portable (Best On-Site / Production)

  • d/8° (SCI/SCE), ΔE*ab ≤ 0.02

  • Large Φ20mm aperture — averages texture/sheen

  • Fast, handheld, rugged

  • Best for: Paint store counters, job-site matching, production QC

3. 3nh MS3008 Multi-Angle (Metallic / Pearlescent Paints)

  • 8-angle measurement (15°/25°/45°/75°/110° + others)Threenh

  • For flip-flop, sparkle, pearlescent, metallic coatings

  • High stability for special-effect finishes

  • Best for: Automotive paint, powder coatings, metallic pigments, High-end industrial coatings, automotive OEM

4. 3nh YS3010 / YS3060 (Mid-Range Portable)

  • d/8°, SCI/SCE, UV adjustable

  • Interchangeable apertures (Φ4/8mm)

  • Bluetooth + USB

  • Best for: General paint store matching, routine QC

Short Best Recommendations

  • Lab formulation / R&D: 3nh YS6060

  • Portable on-site / paint store: 3nh TS7700

  • Metallic / pearlescent paint: 3nh MS3008

  • Entry-level portable: 3nh YS3010


All deliver stable spectral data, minimal metamerism, and perfect batch-to-batch consistency — critical for paint matching.


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