A comparison of different reticles used in telescopic sights. The lower right represents a reticle found in the scope of a Russian SVD sniper rifle."Reticle" redirects here. For the pattern used in photolithography, see photomask.
"Crosshair" redirects here. For the fictional characters in Transformers, see Crosshairs (Transformers).
A crosshair or reticle is a shape superimposed on an image that is used for precise alignment of a device. Crosshairs are most commonly represented as intersecting lines in a "+" shape, though many variations exist, including dots, posts, circles, scales, chevrons, or a combination of each. Most commonly associated with telescopic sights for aiming firearms, crosshairs are also common in optical instruments used for astronomy and surveying, and are also popular in graphical user interfaces as a precision pointer. The crosshair was invented by Robert Hooke, and dates to the 17th century.
The word reticle is from the Latin meaning "net", a network or grid of lines displayed in an optical instrument. The minimum reticle consists of simple "cross-hairs", as described above