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A thermographic weapon sight, thermal imagery scope or thermal weapon sight is a sighting device combining a compact thermographic camera and an aiming reticle. [1] They can be mounted on a variety of small arms as well as some heavier weapons. [2] As with regular ultraviolet sensors, thermal weapon sights can operate in total darkness.
In 2000, the Los Angeles Times called the thermal imaging camera "[p]erhaps the best advance in fire equipment in the last 25 years—and the most expensive". [23] Fire departments have pursued various sources and methods to fund thermal imaging cameras including direct budgeting, [6] grants, [9] and charity donations, [24] among others.
It is possible to shoot infrared but neutral density filters must be used to reduce the camera's sensitivity and the long exposure times mean that care must be taken to avoid camera-shake artifacts. Fuji have produced digital cameras for use in forensic criminology and medicine which have no infrared blocking filter.
Typical standard parallax-free distances for hunting telescopic sights are 100 yards (91 m) or 100 meters (109 yd) as most sport hunting rarely exceed 300 yards (270 m). Some long-range target and "tactical-style" sights without parallax compensation may be adjusted to be parallax-free at ranges up to 300 yards (270 m) to make them better ...
Many thermal imagers, including some forward-looking infrared cameras (such as some LWIR enhanced vision systems (EVS)) are also uncooled. Medium-wave (MWIR) cameras operate in the 3–5 μm range. These can see almost as well, since those frequencies are less affected by water-vapor absorption, but generally require a more expensive sensor ...
This method is still used mainly for hunting small game, and, occasionally, for hunting deer with buckshot, but modern shotguns can also be used for bigger game (deer, bear, etc.) when loaded with slugs. Hunting shotguns are shoulder-fired weapons, and are generally smoothbores, but guns designed to fire slugs may have rifled barrels.
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With advancements in the quality of camera equipment, this method of field observation has become more popular among researchers. [4] Hunting has played an important role in development of camera traps, since hunters use them to scout for game. [5] These hunters have opened a commercial market for the devices, leading to many improvements over ...
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