Hunters, wildlife management officers, and game control agencies often use night vision rifle scopes and other night vision equipment to assist in deer hunting, varmint control, and other activities that are easier at night. The right night vision scope can make the difference between a perfect shot and the buck that got away.
Night vision systems are rated in terms of Generation, or Gen for short. There are three broad Generation levels, each signifying a significant leap in technological development over the previous generation of night vision equipment.
Generation 1
Generation 1 night vision equipment is designed to function under standard ambient light conditions (moonlight or starlight) or with sufficient IR illumination. It typically makes use of an S-20 photocathode with average photosensitivity of 180-200