各种觇牌 TARGETS AZ16 AZ1 徕卡单棱镜觇牌 单棱镜叉架式觇牌 AZ16 AZ11 Crotch-type Leica-style Single Prism target Prism Target AZ17 单棱镜悬挂式觇牌 AZ17 Suspended-type Single Prism Target 2=}1 AZ32 三棱镜悬挂式觇牌 AZ32 Suspended-type Triple Prism Target