The Sightmark PVS-14 Night Vision System is the most versatile system on the market. This military inspired unit can be hand-held, weapon mounted or head mounted using the included headgear or helmet mount. The PVS-14 features an integrated 5mW adjustable IR illuminator with low battery indicator and auto brightness control. Automatic shut-off is activated when the unit is exposed to a bright light source, conserving battery life when not in use. The Gen 3 produces a much higher resolution than many night vision units, allowing for a much longer range of sight. This is a must have for the serious night vision enthusiast.
Field of View @ 100 Meters: 35m
Eye Relief: 25mm
Lens System: 26mmF/1.2
Lens Apperture: 25mm
Focus Range: .24m - infinity
Diopter Setting: +2, -6
Battery Type:(1) AA 1.5V
Battery Life: 40 hours
Operating Temperature: -50°C to +55°C
Dimensions: 4.5" x 2.3" x 2"
A night vision device works by taking existing light, whether infra-red, moonlight or starlight, and changing it into visible light.
This visible light is amplified to the point where it may be viewed in the device's eyepiece.
The process, where the existing light (made up of photons) moves through a photocathode tube, changes to electrons that
are electro-chemically amplified and then driven against a phosphorus screen to return them to visible light, gives the final
image a green hue.
Night vision devices are referred to by what "Generation" they are. Each generation has a different type of intensifier tube.
1st Generation amplifies light several thousand times. The image will generally be sharp in the center and slightly
blurry around the edges, allowing wildlife observation or for general security use. A 1st generation will hum when on, it may
continue to glow for some time after it is turned off, but is the least expensive type of night vision device.
Recognition of a deer on a cloudy night is possible at 75 yards using a 1st generation unit.
2nd Generation has an extra process because a micro-channel plate is directly behind the photocathode tube and
amplifies the light many times more than a 1st generation. The image is sharper and brighter.
Recognition of a deer on a cloudy night is possible at 100 yards using a 2nd generation unit.
3rd Generation has a chemical added to the photocathode and a film is added to increase tube life. These
changes give excellent low light performance.
Recognition of a deer on a cloudy night is possible at 150 yards using a 3rd generation unit.
4th Generation does not use the film in the 3rd generation but uses a radically different way in which power is
supplied to the unit. Image resolution is increased and there is a significant decrease in interference from bright light sources.
Range is increased. The US Military does not use the 4th generation designation. These devices are referred to as "Filmless
Recognition of a deer on a cloudy night is possible at 200 yards using a 4th generation unit.
Regardless of generation, the image may have some black spots on it. These do not affect the performance or reliability of
the device and should not be considered defects.
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