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2. M39 lens mount - Wikipedia

   en.wikipedia.org/wiki/M39_lens_mount

   The M39 lens mount is a screw thread mounting system for attaching lenses to 35 mm cameras, primarily rangefinder (RF) Leicas. It is also the most common mount for Photographic enlarger lenses. True Leica Thread-Mount (LTM) is 39 mm in diameter and has a thread of 26 turns-per-inch or threads-per-inch (tpi) (approximately 0.977 mm pitch) of ...

3. 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 ...

4. Ricoh 500 - Wikipedia

   en.wikipedia.org/wiki/Ricoh_500

   For instance, one might start with a setting of f/11 and 1/250 second, but decide that the moving target demanded the higher shutter speed of 1/500. Simply setting that shutter speed without changing the effective lens aperture would result in an underexposure, but the Ricoh 500 will automatically change the aperture setting to f/8.

5. Voigtländer Prominent - Wikipedia

   en.wikipedia.org/wiki/Voigtländer_Prominent

   The second line of Prominent cameras were marketed as professional system cameras against the Leica threadmount and M bayonet mount and Zeiss Ikon Contax rangefinder camera lines. Voigtländer also sold the Vitessa and Vito lines of compact 35mm rangefinders contemporaneously, generally equipped with fixed, collapsible normal lenses , as less ...

6. Laser rangefinder - Wikipedia

   en.wikipedia.org/wiki/Laser_rangefinder

   A long-range laser rangefinder is capable of measuring distance up to 20 km; mounted on a tripod with an angular mount. The resulting system also provides azimuth and elevation measurements. A laser rangefinder, also known as a laser telemeter, is a rangefinder that uses a laser beam to determine the distance to an object.

7. 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. German instruments tended to use the stereoscopic ...

8. Argus C3 - Wikipedia

   en.wikipedia.org/wiki/Argus_C3

   The Argus C3 was a low-priced rangefinder camera mass-produced from 1939 to 1966 by Argus in Ann Arbor, Michigan, United States.The camera sold over 2.2 million units, making it one of the most popular American cameras in history.

9. TADS/PNVS - Wikipedia

   en.wikipedia.org/wiki/TADS/PNVS

   Images from the leaked July 12, 2007, Baghdad airstrike footage TADS contains stabilized electro-optical sensors, a laser rangefinder and laser target designator . The TADS assembly can rotate +/− 120 degrees in azimuth , +30/−80 degrees in elevation and can move independently of the PNVS.