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There are many variations of reticle pattern; this article concerns itself mainly with the most rudimentary reticle: the crosshair. Crosshairs are typically represented as a pair of perpendicularly intersecting lines in the shape of a cross, "+", though many variations of additional features exist including dots, posts , concentric circles ...
Viewing through a duplex crosshair reticle. The crosshair is the most rudimentary reticle, represented as a pair of smooth, perpendicularly intersecting lines in the shape of a "+", and the crosshair center is used for aiming the weapon.
CT-9904, or "Crosshair", is a deformed clone trooper and member of Clone Force 99. He is the team's sniper , possessing genetic mutations that give him exceptional eyesight. He is the only member of Clone Force 99 whose biochip is activated when Order 66 is issued, causing him to turn on his squadmates after they rebel against the newly formed ...
Crosshair (disambiguation) A crosshair is another name for a reticle. Other meanings include: A song by the Danish band Blue Foundation. Cross Hair (G.I. Joe), fictional G.I. Joe character. Crosshairs (Transformers), several robot superhero characters in the Transformers robot superhero franchise.
Crosshair. The crosshair is the most basic reticle for the AN/PVS-4 and is available as either a simple crosshair, A mildot crosshair or as an aimpoint crosshair. A simple crosshair reticle can be seen on the photo taken through a surveillance AN/PVS-4. The image was taken during a wide-area blackout on a moonless night in a remote suburban area.
Usage. Stadia marks on a crosshair while viewing a metric levelling rod. The top mark is at 1.500 m and the lower is at 1.345 m. The difference between the rod readings is 0.155 m, yielding a distance to the rod of 15.5 m. A typical surveyor's instrument reticle has two pairs of stadia marks.
An instrument equipped for stadia work has two horizontal stadia marks spaced equidistant from the center crosshair of the reticle. The interval between stadia marks in most surveying instruments is 10 mrad and gives a stadia interval factor of 100.
Some instruments provide three crosshairs which allow stadia measurement of the foresight and backsight distances. These also allow use of the average of the three readings (3-wire leveling) as a check against blunders and for averaging out the error of interpolation between marks on the rod scale.
Crosshair eyepiece. A crosshair eyepiece is an ordinary ocular with the only difference being that it has a crosshair for aiming and measurement of the angular distance. This is useful in any type of polar alignment, but especially in drift. Auto guiding systems Dedicated polar scope
Reticle. View through a SUSAT. The reticle of the SUSAT is of unusual design. Unlike the traditional crosshair layouts commonly used, which are in essence a cross intersecting the target, the SUSAT has a single obelisk -shaped post protruding from the bottom edge of the sight.
