这张测试图卡是专门做高分辨率测量的。
3对频率从1到28.5线对每厘米的线条（黑色和白色）分布在白色背景上。这个模式在图表上顺时针方向转动降低分辨率。
This chart is designed to do resolution measurements.
3 pairs of lines (black and white) with frequencies from 1 - 28.5 linepairs per centimeter are printed on a white background. The patterns are ordered clockwise in decreasing resolution on the chart.