Yanding CP137 chart is designed for measuring resolution of digital camera based on the sinusoidal Siemens star which comply to ISO 12233:2014 standard. The chart contains a radially sine modulated Siemens star in the center of the image, 16 surrounding gray patches and black squares with a small white square in it. The CP137 chart is ideal for evaluating imaging equipment and assessing resolution in different directions, which may be affected by noise reduction or other image processing techniques.
▋ Chart Patterns
◆ Gray background with 18% reflectance;
◆ A radially sine modulated Siemens star in the center;
◆ Four marks located around the chart for automatic analysis and software positioning;
◆ 16 gray patches distributed linearly around;
▋ Size Options
Model | CP137-R1X | CP137-R2X | CP137-R4X | |||
Cycle | 77 cycle | 144cycle | 77 cycle | 144cycle | 77 cycle | 144cycle |
Size | 255×238mm | 511×476mm | 1022×951mm | |||
Diameter star | 220mm | 440mm | 880mm | |||
Mark diameter | 12mm | 24mm | 48mm | |||
*1. Yanding charts come with customizable images and sizes. If the listed sizes don't meet your needs, contact sales@rdbuy.com for assistance.
*2. Yanding charts come with mounting services included. Sizes 0.5X/1X or smaller are mounted on 5mm thick board, while 2X/4X or larger are mounted on 4mm thick aluminum composite panel.
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