LED11ET8 G3 940
ISO 12233: 2014 (eSFR)Photographic chart
ISO 12233: 2014 (eSFR)Photographic chart is implementation 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 our ISO 12233:2014 E-SFR charts are fully compliant with the ISO
standard. The eSFR ISO module provides highly automated support for the
mm × 305 mm
7.875" × 12"
mm × 610 mm
15.75" × 24"
mm × 1220 mm
31.5" × 48"
ENHANCED E-SFR test chart
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 our Wedge module.
differences between the charts and the chart illustrated in the
standard are listed below. Even with these differences the suwang
chart is in full compliance with the standard.
20 patch OECF grayscale pattern* is used as opposed to the 16 patch
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.
are four registration marks instead of three to facilitate automated
region detection. (Four features are required for a projective
additional mark above the lower-left registration mark is used for
detecting chart orientation.
The differences between the Enhanced and Standard Versions are as follows:
- Six extra slanted squares are added for measuring performance near the image boundaries.
hyperbolic wedges with spatial frequencies, similar to the CIPA chart
referenced in the ISO standard, for visual analysis or use with
the Wedge module.
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
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 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.
Color Rendition Chart (X-Rite ColorChecker)
Scan Reference Chart
Flesh Tones Test Chart
Bar Test Chart(IEC 61146)
White Balacing Test Chart
ISO 12233:2014 Edge SFR(eSFR)Test chart
Color Spilled Coins (Dead Leaves) Test Chart
Gray Scale Test Chart(11 steps)
Streaking Measurement Test Chart
Color Bar Test Chart
Gray scale chart
Grid Test Chart
ISO 12233 Enhanced digital camera resolution chart
Standard SFRplus Chart
SFRplus Chart on Photographic Paper QI-SFR10-P-RM
ITE Grayscale Chart II(Gamma = 1)
Black & White Spilled Coins (Dead Leaves) Test Chart
OECF Test Chart (ISO 14524)
ISO 12233: 2014 (eSFR)Photographic chart
ISO-14524 digital camera contrast chart
ISO-15739 digital camera noise test chart
ISO 12233 Digital still-camera resolution chart
Automotive Test Chart
SFRplus Chart: Inkjet on Paper - 4:1 Contrast Ratio
SFRplus Chart: Inkjet on Paper - 10:1 & 2:1 Contrast Ratio
Distortion Grid Test Chart
HDTV Gray Scale Test Chart
ITE Grayscale Chart I(Gamma = 0.45)
EIA RESOLUTION CHART 1956
Sector Star Test Chart (72 cycles)
Sector Star Test Chart (36 cycles)
HDTV Universal Test Chart
DTV Color Rendition Test Chart
36-Patch Dynamic Range Test Chart