Member Since: July 30, 2011

Country: United States


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  • Product COM-09378 | about 3 months ago

    Site flagged as a Blackhat SEO Exploit by AVG. Do not click.

  • Product COM-09378 | about 3 months ago

    It’s still up… http://highlowtech.org/?cat=20

  • Product DEV-12654 | about 3 months ago

    I’ve actually tried red plexiglass (and red glass) in a spectrometer and they always pass above 600nm… not too infrared. Black film negatives are better.

  • Product DEV-12654 | about 3 months ago

    Go to CVS, buy a disposable camera, take some photos of the dark and some photos of really bright light, get them developed, and pick the darkest one out of the negative reel and cut it to size.

  • Product DEV-12654 | about 4 months ago

    Black developed film negatives work excellently - I tested a piece of Kodak film on a Perkin Elmer spectrometer and it passed everything over 730nm (near-infrared, what you’re looking for) with a transmittance of close to 97%, while blocking everything below 690nm completely. It’s super cheap too.

    Keep in mind the white balance on the camera may be thrown off, causing all NIR to appear purple.

  • News - Free Day 2012 is Under Wa… | about 2 years ago

    Exaggerating your own “manliness” is not helping anybody. For one, you’re just hurting other people’s feelings that they didn’t win anything.

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