Night Optics USA represents a highly qualified team with many years of experience in manufacturing and distribution of night vision systems for commercial, law enforcement and military applications. They take pride in being able to provide premium quality equipment at competitive prices while focusing on customer satisfaction. Close relationships with law enforcement and military professionals ensure product quality and reliability. Every product they offer has been rigorously field tested. With the most stringent quality control enforcement, they make sure that their equipment will not only perform to specifications, but will provide years of trouble-free use.
The Night Optics USA D-221B-HP is a powerful night vision binocular. True stereoscopic vision is possible, and enhanced, by two second generation plus intensifier tubes. Depth perception can be a crucial concern and this binocular offers outstanding three dimensional viewing in a cost effective, feature laden package. This lightweight unit is a multi use, professional system offering versatility and performance not found in single tube designs.
The D-221B-HP features high quality objective and ocular lenses that provide a crisp image window, while the second generation plus intensifier tubes deliver 40-45 lp/mm of resolution. Automatic Brightness Control ensures even illumination in fluctuating light conditions, and Bright Source Protection keeps the electromechanical components out of harms way. An integral IR illuminator guarantees viewing, anywhere, anytime. With your D-221B-ST, you can head into the darkest of places, and seemingly turn night into day.
There are many different variables that effect the distance that one can see with a night vision device, among them the object's size, the level of details being sought from the object and the conditions of observation. Night vision devices detect much further under a full moon and clear skies than they will under a new moon and cloudy skies. Many different formulas are used to determine the statistic of maximum viewing range and this varies by manufacturer, so ultimately the generation of the intensifier tube is much more relevant than any quoted statistic when determining the maximum viewing range.
All night vision devices sold by B&H have mechanisms in place to protect the intensifier tube from a sudden burst of bright light, but this does not mean that bright light doesn't damage the device. No matter what, bright light in any form is not good for the longevity and performance of image intensifier tubes.