1504002MSPMWG , -
Rifle scope
View through a 4x rifle scopeA telescopic sight, commonly called a scope, is a device used to give an accurate point of aim for weapons such as firearms, airguns and crossbows. Other sighting systems are iron sights, red dot sights, and laser sights
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[edit] Types
A Rifle scope model 687M variable power rifle scopeTelescopic sights are classified in terms of the optical magnification and the objective lens diameter, e.g. 10 50. This would denote 10 times magnification with a 50 mm objective lens. In general terms, larger objective lens diameters are better (collect more light and give a wider field of view), the magnification power should be chosen on the basis of the intended use. There are also Adjustable Objectives sights where the magnification can be changed by manually turning one part, the syntax is the following: minimal magnification maximum magnification objective lens, for example, 3 9 40.
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