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fleem
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Has anyone ever created a monocular (or binocular) for the main purpose of simply gathering more light without much, if any, telephoto effect? A cursory google of it shows me nothing. I guess I'm surprised there aren't old WW2 surplus "passive night vision systems" out there that are simply lens systems held to the eye but that have a huge objective lens with hardly any telephoto capability, in order to work with moonlight, twilight, man-made ambient light, or even starlight. (Note: I did find a so-called "passive" system that still uses electronic amplification of visible light--I'm not sure why it was called passive, then!)