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Ajax Scientific Polished Glass Double Lenses Spherical (Bi-Conca

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Ajax Scientific Polished Glass Double Lenses Spherical (Bi-Conca

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Product description

Ajax Scientific double Bi-concave lens. Made of polished glass with ground edges. Used for reducing the size of speading out light, with two inward curving symmetrical faces. 38-millimeters diameter. 250-millimeters focal length.

Ajax Scientific Polished Glass Double Lenses Spherical (Bi-Conca

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