I expected "night vision" would gather more light, amplifying and contrasting it beyond what the unaided human visual system does. The iGen box says it amplifies light 650x.
However, the unit sees less than dark-adapted eyes do. 10 minutes in a dark room and book shelves 15 feet away are outlined, with individual books having hints of letters on their spines, visible to the naked eye. Meanwhile, this unit sees nothing: a blank screen on highest gain and slowest frame rate (2 fps).
Pan to objects lit by light streaming through the window curtains (as seen by dark adapted eyes) and this unit only starts to see something. I would guess it is perhaps 1/10th the sensitivity of human eyes. Maybe less.
Worse, the brightly backlit LCD screen destroys the dark adaptation in one eye, even on lowest setting and "red" display. The display is so bright, it can almost be used as a projector out the back-end onto a wall a foot away. So imagine walking down a trail at night with only one eye adapted to the night, the other blacked out.
For "night vision" one would be far better off with a pair of big-objective lens binoculars to gather as much light as possible and feed it to your more sensitive eyes, without a "backlit" LCD. This unit makes no sense, really.
When the illuminator is turned on, the situation changes can basically read the books across the room, as if the room light was on.
The box says it casts an "invisible" beam, but it does not. The red beam projec...