DIN ISO 14133-1:2006 光学和光学仪器.双筒望远镜、单筒望远镜和定位观测望远镜的规范.第1部分:通用仪器(ISO 14133-1-2006)
Optics and optical instruments - Specifications for binoculars, monoculars and spotting scopes - Part 1: General purpose instruments (ISO 14133-1:2006) English version of DIN ISO 14133-1:2006-08