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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

3nh Spectrophotometers for Paint Formulation 

For paint formulation accuracy, the 3NH top spectrophotometers prioritize high spectral resolution, excellent repeatability, superior inter-instrument agreement (IIA), d/8° integrating sphere design, and compatibility with advanced formulation software. Below are the leading models

  1. 3nh TS8560 Premium Benchtop Spectrophotometer  (Lab & R&D – Highest Accuracy)

    High precision with d/8° integrating sphere, excellent repeatability and inter-instrument agreement. Ideal for laboratory color analysis, accurate paint formulation and strict quality control. Perfect for opaque and translucent paints. Pairs seamlessly with Pecolor software for precise recipe calculation.

  2. Best for: High-end industrial coatings, R&D, and demanding formulation labs, High-volume paint labs, global color standardization

  3. 3nh TS7700 Portable Spectrophotometer

    Compact and easy to operate, supports SCI/SCE measurement. Perfect for on-site color matching, production line inspection and daily paint tinting control. Seamlessly connects to PeColor for on-the-go formulation, rugged, easy-to-use, designed for high-throughput retail environments.

  4. Best for: Retail paint stores, fast, accurate counter matching, On-site tinting, production line checks

  5. 3nh MS3008 Multi-angle Spectrophotometer

    Professional for metallic, pearlescent and special-effect paints. Captures angular color variation to meet high-end automotive and coating formulation requirements. Captures complex light behavior for perfect effect-paint matches.

  6. Best for: Automotive, specialty coatings


All these instruments deliver superior performance by measuring precise spectral data, which is the foundation for accurate, repeatable, and cost-saving paint formulation.

Yes, we warmly welcome and sincerely invite you or your team to visit our factory, we will help to arrange hotel and pick up you from airport.

A colorimeter is sufficient for basic, routine color checks, while a spectrophotometer is needed for precise, comprehensive color analysis—here’s the clear breakdown:

When a Colorimeter is Sufficient

  1. Simple color matching needs: Ideal for checking if a sample matches a predefined standard (e.g., basic paint batches, plastic parts with solid colors).

  2. Consistent lighting conditions: Works well when measurements are done under fixed, standard light sources (no need to account for varied light effects).

  3. Cost-sensitive, high-volume tasks: Perfect for production lines requiring fast, low-cost color checks without advanced data analysis.

When to Use a Spectrophotometer

  1. Precise color quantification: Necessary for measuring Lab values (lightness, red-green, yellow-blue axes) or detecting subtle color deviations (critical for automotive coatings, high-end textiles).

  2. Complex color analysis: Required for metallic/pearlescent finishes, transparent materials, or samples with gloss/texture variations.

  3. Compliance and documentation: Essential when precise color data (spectral curves) is needed for quality audits, regulatory compliance, or brand color standardization.


Threenh Technology with excellent after sale service, Generally, Our warranty is one years(Additional support period of 3 years). Within the warranty period, we can offer technique support and parts to parts change, necessarily, our engineers may go to your place for better support. Our instrument have professional After-sales Dept. lf you have any technical problem or question with our goods welcome to contact us.

3nh Instrument Recommendation for Translucent Materials

1. YS6002 / YS6002-M Color & Haze Meter

Equipped with d/8° integrating sphere and D/0 transmission structure, it comprehensively tests color difference, haze, transmittance and yellowing index. Ideal for translucent film, frosted glass, milky plastic and liquid samples, perfectly suitable for laboratory and production quality control.

2. KS1500 / KS1510 Color Haze Meter

Adopts large integrating sphere and full-spectrum optical design, delivers stable diffuse transmission data. Specially optimized for thick translucent sheets and high-haze materials, ensuring accurate and consistent color measurement.

3. TS8560 Spectrophotometer

High-precision benchtop model with dual reflection & transmission measurement modes. Supports SCI/SCE detection, with excellent inter-instrument agreement, meeting strict color inspection standards for high-end translucent materials.

4. TS8510 Portable Spectrophotometer

Compact and portable, optional transmission accessory for fast on-site testing of thin translucent samples. Great for factory spot inspection and mobile quality checking.


A coating thickness gauge measures film layers by identifying shifts in magnetic flux, eddy currents, or ultrasonic echoes as they penetrate the coating. The gauge calculates thickness based on the magnitude of these signals. This universally accepted approach results in quick, reliable, and non-invasive measurements. 

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