coincidence rangefinder


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coincidence rangefinder

[kō′in·sə·dəns ′rānj‚fīnd·ər]
(optics)
An optical rangefinder in which one-eyed viewing through a single eyepiece provides the basis for manipulation of the rangefinder adjustment to cause two images of the target or parts of each, viewed over different paths, to match or coincide.
References in periodicals archive ?
Caption: Before laser rangefinders, some shooters used Barr & Stroud coincidence rangefinders for long shots.