Details：

SFRplus charts on photographic paper have the following properties:

（1）5 x 9 grid pattern
（2）Active Area: 223mm x 356mm (8.78" x 14.015"). It is recommended these charts be used to test imaging systems with sensors up to 3MP. For larger image sensor sizes, please see other SFRplus chart listings. The active area of the chart includes white space above and below the top and bottom distortion bars. It is typically about 10% larger than the printed area, which is bounded by the distortion bars on top and bottom. White space is included because test images of the chart must include this white space in order to enable automated processing in SFRplus software.
（3）Contrast levels: 10:1 and 2:1 contrast levels to analyze non-linear signal processing.