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2. Rangefinder - Wikipedia

   en.wikipedia.org/wiki/Rangefinder

   This rangefinder does not require a measuring rod at the target and could perhaps be considered the first true telemeter. In 1790 Jesse Ramsden invented a half-image range finder. Though Alexander Selligue is often mistakenly credited with the invention, he did invent an improved rangefinder with fixed lenses in 1821 and is responsible for ...

3. Laser rangefinder - Wikipedia

   en.wikipedia.org/wiki/Laser_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 ...

4. Coincidence rangefinder - Wikipedia

   en.wikipedia.org/wiki/Coincidence_rangefinder

   Coincidence rangefinders work through the principle of triangulation. In the pictured example, triangulation can be used to determine the range of the ship 𝑑.The position of the lenses A and B are known, and the angle of the lenses α and/or β is set by the operator so that both are aimed at the target.

5. Rangefinder Technology & How it's Changed the Hunting Industry

   www.aol.com/news/2016-06-01-rangefinder...

   Rangefinders first hit the hunting market over two decades ago. Back then we were excited by new tech on the horizon but it didn't quite cut the mustard. It didn't do what we expected it to do ...

6. Rangefinder camera - Wikipedia

   en.wikipedia.org/wiki/Rangefinder_camera

   The only true zoom lens for rangefinder cameras is the Contax G2 Carl Zeiss 35–70 mm Vario-Sonnar T* Lens with built-in zoom viewfinder. [7] A very few lenses, such as the Konica M-Hexanon Dual or Leica Tri-Elmar, let the user select among two or three focal lengths; the viewfinder must be designed to work with all focal lengths of any lens used.

7. Sight In Your Target With These Expert-Recommended Range Finders

   www.aol.com/7-best-range-finders-hunters...

   RF.1 Rangefinder. The RF.1 was Maven’s first range finder—and it’s a good one. Its direct-to-consumer business model keeps the top-of-the-line performance under $500 while offering unique ...