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Standard SFRplus Chart

Standard SFRplus Chart Instructions Operating Manual Standard SFRplus Chart PDF
This Standard SFRplus Chart Instrument are Certified with
certify
1 Years Warranty (Additional support period of 3 years)

The SFRplus test chart can be used with the SFRplus module in Imatest 3.2 or later to measure MTF, lateral chromatic aberration, distortion, tonal response, and color accuracy. The SFRplus module features fully automated region-of-interest detection. The SFRplus chart offers significant advantages over commonly used charts such as the ISO 12233 chart, including 1) much less wasted area, 2) the ability to produce a map of sharpness over the sensor surface, 3) better measurement accuracy due to the lower contrast, and 4) full support for automated testing.

This chart is recommended for most standard testing setups and devices. Choose a size based on your sensor and setup limitations.


Options include:

  • Grid: 5x9 grids are recommended for for typical DSLR formats with aspect ratios of 3:2
  • Paper Size and Active Area Options

    This chart is available in three sizes. It is recommended that the medium sized charts be used to test imaging systems with sensors up to 12 MP, the large charts be used for testing of sensors up to approximately 24 MP, and the extra-large charts be used for sensor sizes above 24 MP.

    Paper Size (Including Margin)

      5x9
    Medium 24
    Large 44
    X-Large 44

    Active Area

    The active area of the chart includes white space above and below the top and bottom distortion bars. It is slightly larger than the printed area, which is bounded by the distortion bars on top and bottom. White space is included in active area because test images of the chart must include this white space in order to enable automated processing in SFRplus software.

      5x9
    Medium 22
    Large 33
    X-Large 42
  • Paper/ink type: Matte paper/ink can be used to reduce reflected light and allow for easier lighting setups
  • Contrast levels: 4:1 contrast ratio for new ISO standard compliance
  • Color chart: a 20 patch color chart.

Our Valued Clients

  • our customer xiaomi
  • our customer sunny optical
  • our customer oppo
  • our customer Truly Opto Electronics
  • our customer Largan Precision
  • our customer o film
  • our customer lenovo
  • our customer SEMCO

FAQs About  SFRPlus Test Charts

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.


Always a pre-production sample before mass production; Always final Inspection before shipment; 

The measurement of color varies according to context in several units. Such common units are L*a*b* (CIELAB), RGB (Red-Green-Blue), and color difference (Delta E). In light absorption, there are no units assigned to absorbance. But the quantitative analysis of absorbance obeys Beer's Law in colorimetry.

Colorimetry is a method that applies color intensity to ascertain the chemical concentrations. It is founded on Beer-Lambert Law, whereby the absorbance at a given wavelength is proportional to the concentration. It is popular in environmental and biochemical testing.

The ΔE (Delta E) formula of the CIELAB color space is usually used to measure color difference. The difference is measured in a colorimeter or spectrophotometer to gauge the level of perceptibility of the difference between two samples in terms of L*a*b*.


The number of reflected light is a measure assigned by a gloss meter as a gloss unit (GU). It is a normalized quantity in which 100 GU is normally a perfect reflection at 60°, and 0° GU is a full diffusion.


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