Buster Beaver Cerakote
Simply Triggers
DSG Arms
Sporting Systems
Advertise on Northwest Firearms
Defensive Arts
Gun Deals
Oregon Rifleworks
Southwest Firearms
Oregon Arms & Ammunition
J&B Firearm Sales
Low Price Guns
HighLine Firearms
A lens is a transmissive optical device that focuses or disperses a light beam by means of refraction. A simple lens consists of a single piece of transparent material, while a compound lens consists of several simple lenses (elements), usually arranged along a common axis. Lenses are made from materials such as glass or plastic, and are ground and polished or molded to a desired shape. A lens can focus light to form an image, unlike a prism, which refracts light without focusing. Devices that similarly focus or disperse waves and radiation other than visible light are also called lenses, such as microwave lenses, electron lenses, acoustic lenses, or explosive lenses.

View More On Wikipedia.org
  1. tac

    Unertl lens cap lost!!!! HELP!!

    Somehow I've managed to lose the front lens cap for my 2" Varmint scope with calibrated head. My usual go-to man, Dewayne Greiner, is declining to respond to my emails, so I'm in a bit of a fix right now. Any suggestions of a clean and wholesome nature would be much appreciated. TIA.
Advertise on Northwest Firearms
NW Custom Firearms
DSG Arms
Southwest Firearms Forum
Project Appleseed
Copeland Custom Gunworks
Cerberus Training Group
Oregon Arms & Ammunition
Sporting Systems
Top