coincidence rangefinder
1Coincidence rangefinder — American soldiers using a coincidence rangefinder with its distinctive single eyepiece during army maneuvers in the 1940s …
2Rangefinder — A rangefinder is a device that measures distance from the observer to a target, for the purposes of surveying, determining focus in photography, or accurately aiming a weapon. Some devices use active methods to measure (such as sonar, laser, or… …
3French battleship Courbet (1911) — For other ships of the same name, see French ship Courbet. Courbet before her 1924 rebuild Career (France) …
4Parallax — For other uses, see Parallax (disambiguation). A simplified illustration of the parallax of an object against a distant background due to a perspective shift. When viewed from Viewpoint A , the object appears to be in front of the blue square.… …
5Periscope — For the 1916 French film, see Le périscope. Principle of the periscope. The periscope on the left uses mirrors whereas the right uses prisms. a Mirrors b Prisms c Observer s eye …
6Battle of Tsushima — Part of the Russo Japanese War …
7N3 class battleship — …
8T-72 operators and variants — The T 72 is a Soviet designed main battle tank that entered production in 1971. It replaced the T 54/55 series as the workhorse of Soviet tank forces (while the T 64 and T 80 served as the Soviet high technology tanks). In front line Russian… …
9photography, technology of — Introduction equipment, techniques, and processes used in the production of photographs. The most widely used photographic process is the black and white negative–positive system (Figure 1 >). In the camera the lens projects an image of… …
10range finder — any of various instruments for determining the distance from the observer to a particular object, as for sighting a gun or adjusting the focus of a camera. Also, rangefinder. [1870 75] * * * Instrument used to measure the distance from the… …
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