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2. List of the United States Army fire control and sighting ...

   en.wikipedia.org/wiki/List_of_the_United_States...

   This is a list of United States Army fire control, and sighting material by supply catalog designation, or Standard Nomenclature List (SNL) group "F".The United States Army Ordnance Corps Supply Catalog used an alpha-numeric nomenclature system from about the mid-1920s to about 1958.

3. Voigtländer Bessa - Wikipedia

   en.wikipedia.org/wiki/Voigtländer_Bessa

   These so-called "Baby Bessa" cameras never were sold with a coupled rangefinder. [17] Post-war Bessa 66 cameras were available with coated lenses, either a 75 mm f /4.5 Vaskar for US$49.50 (equivalent to $770 in 2023) or a f /3.5 Color-Skopar for US$64.50 (equivalent to $1,010 in 2023). [18]

4. Stereoscopic rangefinder - Wikipedia

   en.wikipedia.org/wiki/Stereoscopic_rangefinder

   A stereoscopic rangefinder or stereoscopic telemeter [1] is an optical device that measures distance from the observer to a target, using the observer's capability of binocular vision. It looks similar to a coincidence rangefinder , which uses different principles and has only one eyepiece.

5. Coincidence rangefinder - Wikipedia

   en.wikipedia.org/wiki/Coincidence_rangefinder

   Eyepiece image of a naval rangefinder, showing the displaced image when not yet adjusted for range. The coincidence rangefinder uses a single eyepiece. Light from the target enters the rangefinder through two windows located at either end of the instrument. At either side the incident beam is reflected to the center of the optical bar by a ...

6. M48 Patton - Wikipedia

   en.wikipedia.org/wiki/M48_Patton

   The M13 Fire Control System (FCS) consists of the M5A2 ballistic drive and mechanical M13A3 gun data computer which integrated barrel temperature data [47] with an M17 coincidence range finder. [24] The rangefinder is a double image coincidence image instrument used as the ranging device of the gunner's primary direct sighting and fire control ...

7. Rangefinder - Wikipedia

   en.wikipedia.org/wiki/Rangefinder

   A laser rangefinder, also known as a laser telemeter, is a rangefinder that uses a laser beam to determine the distance to an object. The most common form of laser rangefinder operates on the time of flight principle by sending a laser pulse in a narrow beam towards the object and measuring the time taken by the pulse to be reflected off the ...