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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.

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FAQs About  SFRPlus Test Charts

Of course! Many portable, battery operated, and lightweight coating thickness gauges are available for on-site and field inspections. They provide quick and accurate results and portable gauges are ideal for construction, automotive, and industrial environments.


Because color perception depends on the following factors: 

Light source - For example, incandescent lamps emit orange light, while fluorescent lamps emit cool white light. Therefore, placing an object near different light sources will result in different perceived colors. 

Observed object - Different types of objects affect color perception differently. Examples include opaque objects, translucent objects, and transparent objects. 

Observer's position - Each observer will describe colors differently based on the position of their eyes. 

Different backgrounds - An object's color will appear duller against a light-colored background than against a dark-colored background. Different directions of light reflection from the object - Light reflected from different directions creates different color perceptions. This is particularly noticeable with metallic objects.

Different directions of light reflection from the object - Light reflected from different directions creates different color perceptions. This is particularly noticeable with metallic objects.

Look for dirty or fingerprinted glass along the optical path, recalibrate with standards, and check the set-up for outside light so that it is controlled. If the problems still exist, please reach out to the helpdesk or book a service with your professional service.

Now our testing machines have been sold to more than 80 countries, like USA, Canada, Russia,UK, Italy, Germany, European , India, Pakistan, Philippine, Singapore, Malaysia,Thailand , Vietnam, Korea,Saudi Arabia,Brazil...and so on. We sell to the global market.

With centers in 20 countries, including India, Japan, USA, Germany, Singapore, China, South Korea, and Taiwan, Threenh Technology’ s service network aims to provide customers with convenient access to service globally. With over 1 million measuring instruments sold, our expertise is our greatest asset, enabling us to work with our customers on solutions to complex measurement challenges.

Haze captures the scattering of light, transmittance measures the light that passes through a said material.


 Inquiry - quotation - communication - order confirming - deposit payment - production - testing and debugging - balance payment - packing - delivery - customer receiving - after service. 

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