Bushnell gets you up close and personal with the great outdoors with their diverse world of precision optics and outdoor technologies. Every Bushnell optic is the direct result of extensive research and design.
Investigating what goes 'bump-in-the-night' with Bushnell's NightWatch 4x50 night vision monocular can be quite exhilarating. This lightweight waterproof NVD provides the power of sight without light in a handy ergonomic form factor.
With its sleek yet rugged housing, 4x magnification, large 50mm objective lens, and built in IR illuminator, The NightWatch monocular is an excellent choice for camping, caving, wildlife observation, surveillance. or any time and place you think you're ready to experience the secrets of the dark first hand.
There are many different variables that affect 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 the method of calculation varies by manufacturer.
The important factors to consider when evaluating any night vision device are the intensifier tube's generation, s/n ratio, level of magnification, specified resolution, along with the clarity & light transmission efficiency of the optical system.
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.