A telescopic sight, commonly called a scope informally, is an optical sighting device based on a refracting telescope. Sights are equipped with a referencing pattern mounted in a focally appropriate p
View through a 4× telescopic sight
Leupold and Stevens Mark 6 scope with variable magnification X3-X18, mounted on an M24 SWS
German-made ZF Ajack 4×90 (4×38 in modern terminology) for the World War II-pattern Swedish Mauser m/1941 sniper rifle.
A Civil War reenactment of the Battle of Bean Station with a Confederate sharpshooter shooting a Whitworth rifle equipped with a Wm. Malcolm long-tube scope.
A prism sight or prismatic sight, sometimes also called prism scope or prismatic scope, is a subtype of telescopic sight that uses a reflective prism mechanism for its image-erecting system, instead o
Telescopic sight
…variable magnifications appeared later, and were varied by manually adjusting a zoom mechanism behind the erector lenses. Other types of scopes include prism sights and low-power variable optics. Telescopic sights have both advantages and disadvantages relative to iron sights. They are built to various specifications…
A Trijicon 3.5x35 ACOG prism sight with a Trijicon RMR red dot sight mounted on the top.
A British L129A1 sharpshooter rifle with a TA648-308 6×48 ACOG fitted
An Elcan SpecterOS 4x prism sight with a Shield Sights reflex sight mounted on top.
Diagrams showing an interior view of the No. 7 Mark I dial sight for the British QF 18 pounder field gun. Prisms are marked H and F. (cirka 1913)