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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GROUND GLASS 3-1/2" x 4-3/8"

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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$3.50 PKG (3)

SCIPLUS IS OUR NAME, OPTICS IS OUR GAME

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 surplus, and this is for-real stuff. We mean many are solid dyed optical glass, ground and polished to flatness standards that were probably excessive. Others are from the old days in photographic optics, and their standards were even tighter than your militaristic Uncle's. This one is amber in color and 30mm diameter. 2.3mm thick and is not mounted. Great for experimenting and for artists. Have fun, we know he did.

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30mm DIA. GLASS AMBER FILTER

SCIPLUS IS OUR NAME, OPTICS IS OUR GAME

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 surplus, and this is for-real stuff. We mean many are solid dyed optical glass, ground and polished to flatness standards that were probably excessive. Others are from the old days in photographic optics, and their standards were even tighter than your militaristic Uncle's. This one is amber in color and 30mm diameter. 2.3mm thick and is not mounted. Great for experimenting and for artists. Have fun, we know he did.

accent
$5.95 PKG (4)

OPTICAL GLASS FILTERS

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 surplus, and this is for-real stuff. We mean many are solid dyed optical glass, ground and polished to flatness standards that were probably excessive. Others are from the old days in photographic optics, and their standards were even tighter than your militaristic Uncle's. We've found that photographers, artists, and optical designers still have an occasional need for good glass filters, so we're making a list of some goodies. As always, don't be timid about calling for quotes on quantities. If we have 'em, we'll sell 'em. Just don't sell them back. Please!

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FILTER, AMBER/30mm DIA. X 2.3mm THK/ NOT MOUNTED

OPTICAL GLASS FILTERS

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 surplus, and this is for-real stuff. We mean many are solid dyed optical glass, ground and polished to flatness standards that were probably excessive. Others are from the old days in photographic optics, and their standards were even tighter than your militaristic Uncle's. We've found that photographers, artists, and optical designers still have an occasional need for good glass filters, so we're making a list of some goodies. As always, don't be timid about calling for quotes on quantities. If we have 'em, we'll sell 'em. Just don't sell them back. Please!

accent
$3.25 PKG (2)
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NEW

SET YOUR SIGHTS ON THINGS ABOVE

US Navy Mk8 Mod8 gunsight reticle. In classic "ladder" pattern. Came to us in a lot of antique 1940's Eastman Kodak Military grade lenses and reticles. This unit was part of an illuminated cannon sight or gunsight. Might be a bit dusty or tarnished, but still looks pretty good for their age. Only available online or in-store by special order. 

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US NAVY MARK 8 MOD 8 "LADDER" RETICLE LENS, 100 MILS RANGE, GUNSIGHT 1940s

SET YOUR SIGHTS ON THINGS ABOVE

US Navy Mk8 Mod8 gunsight reticle. In classic "ladder" pattern. Came to us in a lot of antique 1940's Eastman Kodak Military grade lenses and reticles. This unit was part of an illuminated cannon sight or gunsight. Might be a bit dusty or tarnished, but still looks pretty good for their age. Only available online or in-store by special order. 

accent
$6.95 EACH

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