镜头对焦测试卡

                 品牌：Sine Image/ESSER爱莎
                 型号：YE0110/TE110
                 尺寸：可定制
                 材料：菲林/高清相纸
                 比例：4:3
                 类型：反射式/透射式可选

镜头对焦测试卡简介

镜头对焦测试卡YE0110用于测试镜头的整体对焦，调整镜头，检查镜头各区后焦及分辨率。测试卡由9个扇形星组成，在图像各个区域均匀分布。扇形星的中间白色部分是外径的10%。在扇形星内有两个圆形线条，内层图形是一个625线的结构，较大圆线是312线结构。

The test chart consists of 9 sector stars, distributed equally over the picture area. The unresolved center of the sector star is 10% of its outer diameter. Within the sector stars are two circular lines. The inner one marks a 625 line structure, the larger circular line marks a structure of 312 lines.

 
The test chart is designed for

• adjustment of camera lenses
• checking back focal distance
• checking resolution over the picture area