Language
Chinese
Home>Main Instruments>Test Charts>ISO Test Charts

ISO 12233: 2014 (eSFR)Photographic chart

ISO 12233: 2014 (eSFR)Photographic chart Instructions Operating Manual ISO 12233: 2014 (eSFR)Photographic chart PDF
This ISO 12233: 2014 (eSFR)Photographic chart Instrument are Certified with
certify
1 Years Warranty (Additional support period of 3 years)

ISO 12233:2014 E-SFR charts are implementations of the Low Contrast Edge SFR (E-SFR) test chart illustrated in Section 6.1 and Annex C of the ISO Standard Document. We offer the Enhanced version of this chart in high resolution photographic prints, suitable for high resolution sensors up to 54MP at the 4x size.

All Imatest ISO 12233:2014 E-SFR charts are fully compliant with the ISO standard. The Imatest eSFR ISO module provides highly automated support for the new charts.
 

Chart Sizes Enhanced Megapixel Suitability *
1x 200 mm × 305 mm
7.875" × 12"		 3.4 MP
2x 400 mm × 610 mm
15.75" × 24"		 13 MP
4x 800 mm × 1220 mm
31.5" × 48"		 54 MP

ENHANCED VERSION

 ISO 12233:2014 E-SFR chart has all the features of the Standard chart, keeping the 3:2 aspect ratio, with the addition of six added slanted squares for measuring performance near the image boundaries and hyperbolic wedges for visual analysis or analysis with the Imatest Wedge module. 

The differences between the Imatest charts and the chart illustrated in the standard are listed below. Even with these differences the Imatest chart is in full compliance with the standard.

  • A 20 patch OECF grayscale pattern* is used as opposed to the 16 patch version.
  • The Focus Patterns in the centers of the squares are rectangular (to increase the MTF measurement area) and are designed to reduce interference with automatic edge detection.
  • There are four registration marks instead of three to facilitate automated region detection. (Four features are required for a projective transform.)
  • An additional mark above the lower-left registration mark is used for detecting chart orientation.
     
ENHANCED VERSION

The differences between the Enhanced and Standard Versions are as follows:

  • Six extra slanted squares are added for measuring performance near the image boundaries.
  • Several hyperbolic wedges with spatial frequencies, similar to the CIPA chart referenced in the ISO standard, for visual analysis or use with the Imatest Wedge module.
  • 16 color patches when produced with technologies that allow color (inkjet or color LVT), with colors similar to the industry-standard 24-color test chart.
     

Megapixel Quality Ratings

Megapixel suitability is based on analysis of Modulation Transfer Function (MTF) obtained from a chart image captured using a 1:1 magnification lens (Canon 65mm f/2.8 1-5x macro) and a 6.5µm pixel size sensor (Canon EOS 6D). In order to consider performance throughout the cameras range of expected sharpness, MTF90 (the spatial frequency where MTF is 90%) is weighted at 0.5, MTF70 is weighted at 0.35, and MTF50 is weighted at 0.15. Conversion to megapixels is based on the Imatest Chart Quality Index (CQI) calculation which determines sensor height suitability using the equation 2 * MTFxx (cycles per object mm) * vertical chart height (mm), where xx is 90, 70 or 50. Megapixel suitability calculations assume that (1) the lens is of high quality, (2) that the chart fills the vertical field of view (vFoV) of the camera system, and (3) that the sensor aspect ratio is 3:2. For 16:9 aspect ratio sensors (with pillarboxed framing, if applicable), multiply the megapixel suitability by 1.185. For 4:3 aspect ratio sensors (with left/right sides of chart cropped), multiply megapixel suitability by 0.889. Charts can be suitable for significantly higher megapixel counts if the minimum resolvable feature size of the lens is larger than the pixel size or the chart fills less than the full sensor vertical field of view.

Our Valued Clients

FAQs About ISO Test Charts

 The five common gloss levels are:

1. Flat/Matte (0–10 GU)

2. Eggshell (10–25 GU)

3. Satin (26–40 GU)

4. Semi-gloss (41–70 GU)

High Gloss (71–100+ GU)
These levels vary slightly depending on industry and standards used.


The gloss meter is used to measure gloss at typical angles (typically 20°, 60°, or 85°). The instrument illuminates the material and measures the amount of light reflected and states the outcome in gloss units (GU), which is related to perceived brilliance.


At most of time, we have Spectrophotometer stock in the factory. Generally it is 1-3 working days after the payment confirmed. After shipped, we will email you the tracking number. You can check the shipping status of your order on the website. If you are in urgent need, we can consider making special arrangement for you.

Powder paint gloss levels are classified as:

● Flat: 0–10 GU

● Satin: 11–40 GU

● Semi-gloss: 41–70 GU

● Gloss: 71–85 GU

● High Gloss: 86+ GU
 

These are measured at a 60° angle for standardization.


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

Color measurement methods involve visual approximation (against color charts), colorimetry (by means of filters and detectors), spectrophotometry (a more detailed spectral analysis), and image analysis by computer. These are color measurement methods that are applied in the laboratory, production, and quality assessment.

Related ISO Test Charts You May Also Like

Copyright ©1998 - 2025 Guangdong Threenh Technology Co.,Ltd. Privacy Policy

Give us a call!

Discuss your project with one of our product specialists:

0086 755 26508999

Need pricing?

We respond to quote requests within 1 business day.

service@3nh.com

Already know what you need?

Submit a demo request for the product you're interested in.

Get a Demo
Leave Your Message
We use cookies to ensure that we give you the best experience on our website. If you continue to use this site we will assume that you are happy with it. Privacy policy