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ISO 12233 Digital still-camera resolution chart

ISO 12233 Digital still-camera resolution chart Instructions Operating Manual ISO 12233 Digital still-camera resolution chart PDF
This ISO 12233 Digital still-camera resolution chart Instrument are Certified with
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The ISO Camera Resolution Chart conforms to the ISO-12233:2000 standard, "Photography-Electronic still picture cameras - Resolution measurements". Hyperbolic wedges for resolution evaluation range from 100 - 2000 lines per picture height. Other features include checker patterns, multiple slant-edge lines, a center-focus zone plate and framing marks for 1:1, 4:3, 3:2, and 16:9 aspect ratios.
 

Common standard specifications
 

Product NO Multiple Size
NQ-10-50A 0,5X 10x17.8 cm
NQ-10-100A 1X 20x35.6 cm
NQ-10-200A 2X 40x71.1 cm
NQ-10-400A 4X 80x142.2 cm
NQ-10-800A 8X 160x284.4 cm

Paper/ink type: Semi-gloss OR Matte. Matte paper/ink can be used to reduce reflected light, but is slightly less sharp than semi-gloss paper. Semi-gloss paper/ink is recommended for most applications.

Please Note

This chart does not conform to the updated ISO 12233:2014 standard. We recommend thePhotographic ISO 12233:2014 E-SFR chart for testing that does not specifically require the old chart.

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FAQs About  ISO Test Charts

The LAB color space defines colors in a three-dimensional model: Lightness (L), red–green axis (a), and blue–yellow axis (b). It's a globally recognized standard supported by most modern color measuring devices. CIELAB is a standardized, device-independent system designed to map all visible colors that the human eye can perceive.

The LAB color space uses three values to define any color, each representing a specific dimension:


L (Lightness): Ranges from 0 to 100. It measures the brightness of the color, where 0 is pure black and 100 is pure white.
A (Red-Green Axis): Ranges from approximately -128 to +127. Positive values represent red tones, while negative values represent green tones.
B (Yellow-Blue Axis): Ranges from approximately -128 to +127. Positive values represent yellow tones, while negative values represent blue tones.


For accurate results, install a clean and well temperature-regulated booth that is also sheltered from reflective surfaces and direct sunlight. Ambient light in the booth and the surrounding area from where the light is being viewed should not mix.


They provide accurate and repeatable assessments of color in various settings for the purpose of avoiding inconsistencies in mismatched items and ensuring steady production or branding.


Many people might answer "with the human eye", but this is actually not comprehensive. The human eye cannot accurately distinguish the colors of similar objects. Furthermore, everyone's perception of color varies. Therefore, people have developed color measurement tools based on the CIE color system. 

Currently, there are two main types of commonly used colorimeters, as follows: 

Colorimeter - It is an ideal choice for quality control (QC) on production lines, used to detect color differences. 

Spectrophotometer - It is suitable for the development of color characteristics and color analysis in laboratories.

L*a*b* is an L*a*b* color space. The L* is a measure of lightness (as 0 = black, 100 = white), a* indicates the green to red axis, and b* indicates the blue to yellow axis. It is also common in color measurement in terms of precision and reliability.


The gloss scale is normally measured against the scale of 0 to 100 gloss units (GU). The scale is zero at matte and 100 at a mirror. Other very smooth surfaces can be over 100 GU at lower angles, such as 20°.


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