F 型立体测图仪(Stereometrograph F)F 型立体测图仪是民德蔡司厂生产的一种根据纯机械投影原理设计和正射影像观测的立体测图仪。是一种用于数字和图解测图的航空摄影测量仪器。对常角、宽角和天顶距不超过8(?)的特宽角像片均适用。能精确处理焦距为85～310毫米,像幅为23×23厘米的航摄像片和地面摄影像片。该仪器有许多保护装置,用防尘、防机械 Stereometrograph F Stereometrograph F is a stereograph made by Mintel Zeiss that is designed based on the principle of purely mechanical projection and used for orthographic imaging. Is an aerial photogrammetry instrument for digital and graphical mapping. For normal angle, wide angle and zenith distance of not more than 8 (?) Extra wide angle film are applicable. Can accurately handle the focal length of 85 ~ 310 mm, the image is 23 × 23 cm aerial photos and ground photography. The instrument has many protective devices, with dust, anti-mechanical