Videocamere a intensificazione di luce per la visione notturna
Night vision cameras with no IR sources
Why not IR
Using IR light sources is the current standard offer for night surveillance. But standard IR sources have a limited range (tens of meters or a hundred in the best case), and in any case something out of the IR light come will be invisible.
In these cases intensification of natural light (moonlight or any low residual ambient light) is a cost effective and excellent alternative.
It has no range limits (it has in terms of resolution and optics, no different from daylight), it has no dependence on IR sources, little power consumption and absolutely no detectable emissions (nothing an animal sensitive to IR can detect).
The camera was set to record the image in a large area, where deers often transit at night.
The recording was taken all night, while the short clip hereafter summarizes some representative periods during that night.