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ZEISS DTI thermal imaging cameras. For more discoveries at night, and during the day.

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  1. B

    Plastic lenses

    There are probably 100 million camera lenses made from plastic from the 1950s onwards. These were on low end cameras. I think that smartphone camera lenses may also be plastic, so that means billions of plastic lenses. I had a large compound lens from a photocopier. It had garish strange...