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Night Vision Equipment & IR

How to see the invisible

Once having bought a cheap night vision scope, I was soon bored with looking at the trees in our garden. However, I did notice that during the twilight zone, I could see a bird in a tree that I could not distinguish otherwise with my bare eyes. Through the scope, the bird was pitch black, and the leaves were white! I did a little research on 'night vision scopes', or image amplifiers as they are sometimes called, and discovered that the image amplifier is indeed sensible for IR waves (+700nm). Normally this IR effect is not very distinctive, since these amplifiers are also sensible in the visible spectrum (400-700nm). However, by mounting a dark IR-filter (also called 'low-pass' filters; they let low frequencies of light pass pass, and block high frequencies), you can get a fairly good impression of the final image that will appear on IR-film. The one I offer for sale is quite light, not more than a compact binoculars, so I take it with me as much as I can. It prevents lots of boring pictures, and also leads you to the most beautiful shots, ones you would never have considered taking without such a preview solution!

For more info about how to obtain such a cheap night vision monoculair, see night vision monoculair For Sale




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