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Optics

Optics

Optics

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  • GROUND GLASS 3-1/2" x 4-3/8" PKG(3) GROUND GLASS 3-1/2" x 4-3/8" PKG(3)

    GROUND GLASS
    GROUND GLASS 3-1/2" x 4-3/8" PKG(3)

    One wiseacre assumed we meant any package leaving our shipping room that once had a glass object in it. That is a malicious rumor. . . Ground glass is thin plate glass, the surface of which has been physically ground or...
    Starting at $3.50
    Starting at $3.50
    Qty in Cart: 0
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    Starting at $3.50
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  • FILTER,  67MM X 70MM X 4.1MM THK/ GELATIN SIGHT FILTER,  67MM X 70MM X 4.1MM THK/ GELATIN SIGHT

    OPTICAL GLASS FILTERS
    FILTER, 67MM X 70MM X 4.1MM THK/ GELATIN SIGHT

    Al Luebbers, our founder, collected glass. Not glass like you'd find on a knick-knack shelf, but optical glass. Lenses, prisms, reticles and filters, for example. Focus on the filters. Many of his filters came out of military...
    Starting at $1.75
    Starting at $1.75
    Qty in Cart: 0
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    Starting at $1.75
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  • SOLAR SUN EVENT VIEWING GLASSES PKG(2) SOLAR SUN EVENT VIEWING GLASSES PKG(2)

    Sunspot & Solar Eclipse Observers!
    SOLAR SUN EVENT VIEWING GLASSES PKG(2)

    These 5-5/8" wide cardboard solar viewing glasses filter out 99.999 percent of visible light, and 100 percent of harmful UV and IR light, which means they’re safe for direct solar viewing (and your sunglasses aren’t). A sharp, orange image of...
    $4.80
    $4.80
    Qty in Cart: 0
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    $4.80
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