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A Swift model 687M variable power rifle telescopic sight with parallax compensation (the ring around the objective lens is used for making parallax adjustments). Telescopic sights are classified in terms of the optical magnification (i.e. "power") and the objective lens diameter. For example, "10×50" would denote a fixed magnification factor ...
Windage adjustments are made on the left hand side of the base, using a flat object such as a flat-head screwdriver or a coin. The windage adjustment is intended only for the initial sighting in procedure of the C79. Elevation adjustments are made via a rotary knob and are adjusted from 200 to 800 m. To bring the sight to a proper elevation ...
Generally, scopes will have turret adjustments to allow the scope to be easily adjusted for various shooting conditions. For benchrest shooting, scopes with a second focal plane (SFP) reticle and click adjustments of 1 ⁄ 8 moa (approximately 0.036 mil) are most commonly used. Scope models with 0.025 mil and 0.05 mil adjustments are also ...
An ELCAN C79 3.4x28 sight. Raytheon ELCAN Optical Technologies, also simply ELCAN (Ernst Leitz CANada), [1] is a Canadian optics and electronics manufacturing company owned by American defense contractor RTX Corporation, currently based in Midland, Ontario.
The PE scope (Russian: Винтовочный оптический прицел образца 1931 г. [1] or ПЕ, often called Прицел Емельянова, or Yemelyanov's sight [2] or Прицел Единый or Standard sight) is a family of Soviet telescopic sights, used from 1930s onwards on Mosin-Nagant sniper rifles, as well as SVT and AVS rifles. [2]
Parallax also affects optical instruments such as rifle scopes, binoculars, microscopes, and twin-lens reflex cameras that view objects from slightly different angles. Many animals, along with humans, have two eyes with overlapping visual fields that use parallax to gain depth perception ; this process is known as stereopsis .