ITEM: Entfermungsmesser Optical rangefinder
YEAR: 1940s –
AVAILABLE FOR: TV & Film / Photo Shoots, Events & Displays
CONDITION: Very good
ADDITIONAL INFORMATION : When using any artillery or anti-aircraft guns effectively, accurately estimating range to the target is critical to the success of a direct hit on the target. Many armies around the world employed optical equipment specially designed for range finding and although most looked very similar in design, two schools of thought existed with one type working on the theory of coincidence and the other being a stereoscopic based vision system. The German’s like most other armies favoured the coincidence of images principal. These Rangefinders using this coincidence theory work on the known principal of triangulation were by knowing the distance between two points which we call the base line (i.e. the two objective lens being 1000mm apart in the device) and the angle of these two points relative to the target, one can work out the distance by using trigonometry.