品牌：Sine Image/ESSER愛莎

型號：YE0110/TE110

尺寸：可定制

材料：菲林/高清相紙

比例：4:3

類型：反射式/透射式可選

鏡頭對焦測試卡簡介

鏡頭對焦測試卡YE0110用于測試鏡頭的整體對焦，調整鏡頭，檢查鏡頭各區(qū)后焦及分辨率。測試卡由9個扇形星組成，在圖像各個區(qū)域均勻分布。扇形星的中間白色部分是外徑的10%。在扇形星內有兩個圓形線條，內層圖形是一個625線的結構，較大圓線是312線結構。

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