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SFRplus Chart on Photographic Paper QI-SFR10-P-RM

SFRplus Chart on Photographic Paper QI-SFR10-P-RM Instructions Operating Manual SFRplus Chart on Photographic Paper QI-SFR10-P-RM PDF
This SFRplus Chart on Photographic Paper QI-SFR10-P-RM Instrument are Certified with
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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, and tonal response. 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,
  4. full support for automated testing.


SFRplus charts on photographic paper have the following properties:

  • 5x9 grid pattern
  • Active Area: 223mm x 356mm. It is recommended these charts be used to test imaging systems with sensors up to 3 MP. For larger image sensor sizes, please see other SFRplus chart listings. The active area of the chart includes white space above and below the top and bottom distortion bars. It is typically about 10% larger than the printed area, which is bounded by the distortion bars on top and bottom. White space is included because test images of the chart must include this white space in order to enable automated processing in SFRplus software.
  • Contrast levels: 10:1 and 2:1 contrast levels to analyze non-linear signal processing

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FAQs About  SFRPlus Test Charts

Common sources like D65, TL84, and CWF mimic daylight, store, home, and fluorescent lighting, and are used to provide conditions for dependable color comparison.


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.

Threenh Technology colorimeter is shipped with an operating instructions and video of English version.If you need an electronic version of the user manual, you can download it from our website download center

a. It’s needed to perform manual calibration for NH300 when first starting.

b. In the subsequent starting, no need to perform manual calibration.

c. Suggestion: it’s best to perform manual calibration once a week or when NH300 measured data is not accurate.

A calorimeter is used to measure heat that is gained or lost during a chemical or physical reaction. A sample is taken in an insulated container, and a temperature change is measured. This assists in computing the alterations in energy by the equation Q = mcΔT, where Q is heat.


a. Connect colorimeter to the PC with USB cable.

b. Turn on the colorimeter to enter main menu. Select "Comm" and press "Enter" key to start communication.

c. Right click on "My Computer" on the desktop. Click "Manage" -> "Device Manager" -> "Ports", you can see similar display as "SCI USB2Serial (COM6)".

d. Click "Settings->Communication Parameters" in CQCS3 software interface. Select the corresponding port in "Serial Port".

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