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Ground Glass
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 acid-etched to create a grainy, grayish, opaque surface. Use it to produce an image from a lens or lens system. Even a simple magnifier, held between the ground glass and, say, a window, will produce an image of the window scene on the ground glass. Ground glass has another magical property: it is opaque to any object viewed at a distance, but not if that object is in direct contact with the glass surface. A necessary element of your optical education. #2728 (square) is 2"sq x 1/32" thick. #2610 (rectangular) is 3-1/2" x 4-3/8" x 1/16" thick.
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2610 RECT. GND. GLASS | |
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2728 SQUARE GND. GLASS |
Victorian Dropper
It looks as though it should be used for administering laudanum! A 1-1/4" sq x 3" tall clear glass bottle, it has thick molded sides and a heavy lip: very antique in appearance. It is stoppered with a red(!) rubber stopper which is the squeeze bulb for the glass dropper tube inside. A real eye catcher, but give it a good wash please. It clearly is not sterile.
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91367 OLD STYLE DROPPER BOTTLE |
14mm x 28mm
They may be a little dirty, but that's a small price to pay for a glass achromatic lens at this small price. Small in size but a big value at 14mm dia. x 28mm focal length.
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68019 LENS, ACH, 14 DIA 28 FL |
World's Best Lens Cleaner
Rexton lens and optical surface cleaner cleans all optical surfaces: lenses, mirrors, prisms, windows, slides and leaves no haze. It cleans plastic or glass camera lenses, coated or uncoated. We have given some to our telescope supplier, who is an expert in such matters, and he says it is the best he has ever seen. You can even clean painted and metal surfaces. Comes in an 8 oz squeeze bottle with a flip up squirter. Absolutely the last word in cleaning for optics.
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92930 REXTON LENS CLEANER, 8OZ |
Cut The Lights
Wide–mouth glass amber jars in two sizes for photosensitive storage. The 200ml, 7 oz size is 4–1/4” tall x 2–1/2” dia, with a 1–3/8” inside dia mouth, and a blue plastic lid that is gasketed. Ideal for chemists, cooks and others.
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29834 AMBER JAR, 7 OZ |
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