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4-1/2” PLANO-CONVEX LENS
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What’s Flat On One Side…

and curved on the other? A turtle. Also half a grapefruit. Also a plano-convex glass lens, like this one (its focal length is twice the radius of its curved side). Mighty nice paperweight/magnifier too. Measures 4-1/2” across with flattened edges so it’s 3-1/4” across the other way.

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4-1/2” PLANO-CONVEX LENS

What’s Flat On One Side…

and curved on the other? A turtle. Also half a grapefruit. Also a plano-convex glass lens, like this one (its focal length is twice the radius of its curved side). Mighty nice paperweight/magnifier too. Measures 4-1/2” across with flattened edges so it’s 3-1/4” across the other way.

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$7.50 EACH

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!

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$3.25 PKG (2)

Protective Lens

One of those clear plastic jobs that goes over an automotive light or some such. It provides a bit of focusing to strengthen the beam and some protection, but isn't really an optical element. This one is 2-7/8" sq. x 9/16" thick. Actually, the plastic is only about 1/8" thick, but there is a rim to the rear which gives it overall depth. Good protection for outdoor lights. Could be set in the outhouse door to admit distorted light. Or flip it over and serve nuts in it.

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CLEAR PROT. LENS

Protective Lens

One of those clear plastic jobs that goes over an automotive light or some such. It provides a bit of focusing to strengthen the beam and some protection, but isn't really an optical element. This one is 2-7/8" sq. x 9/16" thick. Actually, the plastic is only about 1/8" thick, but there is a rim to the rear which gives it overall depth. Good protection for outdoor lights. Could be set in the outhouse door to admit distorted light. Or flip it over and serve nuts in it.

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$3.25 PKG (6)

For Great Viewing

Our best jeweler's loupe, this has a professional-quality, full 10X triplet lens. A ring of (6) white LEDs around the 13/16" glass lens ensures an even distribution of light. Housing is an angular, 7-sided teardrop shape 1-3/4" x 1-1/8" that folds out of a metal case with a strap hook. Tucked into the small leather pouch it comes in is a spanner wrench, in case you ever need to replace the (3) button-cell batteries.

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10X TRIPLET LOUPE

For Great Viewing

Our best jeweler's loupe, this has a professional-quality, full 10X triplet lens. A ring of (6) white LEDs around the 13/16" glass lens ensures an even distribution of light. Housing is an angular, 7-sided teardrop shape 1-3/4" x 1-1/8" that folds out of a metal case with a strap hook. Tucked into the small leather pouch it comes in is a spanner wrench, in case you ever need to replace the (3) button-cell batteries.

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$20.95 EACH

What's Your Objective?

LOMO microscope objective: 100X spring-loaded oil immersion semi-plan achromat with a numerical aperture of 1.25, designed for a 160mm tube, with RMS threaded nosepieces and a parfocal distance of 45mm. Normally sells for $100--high-quality Russian optics for an amazing American surplus price!

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100X LOMO MICROSCOPE OBJECTIVE

What's Your Objective?

LOMO microscope objective: 100X spring-loaded oil immersion semi-plan achromat with a numerical aperture of 1.25, designed for a 160mm tube, with RMS threaded nosepieces and a parfocal distance of 45mm. Normally sells for $100--high-quality Russian optics for an amazing American surplus price!

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$39.50 EACH

10X Eyepiece

Select from our collection of compensating microscope eyepieces from LOMO® at microscopic prices. All of these are standard DIN size, all are F.N.18. Pick the 7X eyepiece (part #EF-7X), the 7X with a reticle (part # EF-7XS) or the 10X (part # EKW-10X).

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7X LOMO MICROSCOPE EYEPIECE

10X Eyepiece

Select from our collection of compensating microscope eyepieces from LOMO® at microscopic prices. All of these are standard DIN size, all are F.N.18. Pick the 7X eyepiece (part #EF-7X), the 7X with a reticle (part # EF-7XS) or the 10X (part # EKW-10X).

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$19.95 EACH

Digital Microscope, Plus

Completely self-contained, this hand-held digital microscope has a 2.4" color LCD screen, captures still and video images and can be used as a regular, non-microscopic video camera when not in the lab. Our Optics Evaluation Boffin calls it an "amazing little device." Camera is 3 megapixels, up to 12 with interpolation, 3.7X and 54X optically, 4X digital zoom for 216X, 128MB internal memory, SD card slot (up to 8G), adjustable 0/3/6 LED illumination. Has adjustable exposure, resolution and color settings. USB 2.0 cable and carrying case included. You add (2) "AA" batteries. Model #44310 from Celestron®.

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CELESTRON DIGITAL MICROSCOPE & CAMERA

Digital Microscope, Plus

Completely self-contained, this hand-held digital microscope has a 2.4" color LCD screen, captures still and video images and can be used as a regular, non-microscopic video camera when not in the lab. Our Optics Evaluation Boffin calls it an "amazing little device." Camera is 3 megapixels, up to 12 with interpolation, 3.7X and 54X optically, 4X digital zoom for 216X, 128MB internal memory, SD card slot (up to 8G), adjustable 0/3/6 LED illumination. Has adjustable exposure, resolution and color settings. USB 2.0 cable and carrying case included. You add (2) "AA" batteries. Model #44310 from Celestron®.

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$89.95 EACH

Apostrophic Loupe

One of our largest double loupes. Shaped like a giant apostrophe, it measures 2" thick x 2-1/2" long x 1-3/4" wide at the widest. Has a high-low beam white LED light, plus a UV LED light, both powered by an A23 battery, included and replaceable. The 1" dia lens has a thumbwheel focus and is 10X, according to the box, but we say it's closer to 7X.

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LARGE LIGHTED LOUPE

Apostrophic Loupe

One of our largest double loupes. Shaped like a giant apostrophe, it measures 2" thick x 2-1/2" long x 1-3/4" wide at the widest. Has a high-low beam white LED light, plus a UV LED light, both powered by an A23 battery, included and replaceable. The 1" dia lens has a thumbwheel focus and is 10X, according to the box, but we say it's closer to 7X.

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$8.95 EACH

Loupe!

This little 5/8" dia, 5X acrylic lens is mounted in a 4-1/4" long acrylic base/handle. Good for really close work. Comes in a little storage pouch, too.

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5X ACRYLIC LENS

Loupe!

This little 5/8" dia, 5X acrylic lens is mounted in a 4-1/4" long acrylic base/handle. Good for really close work. Comes in a little storage pouch, too.

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$3.95 EACH
$7.95
-50%

See What You’re Missing

These Mirage™ 7-15x35 zoom binoculars from Meade Instruments® will embiggen your world. The 35mm lens are small and light enough to carry around all day while the 7-15x zoom function lets you control your image’s magnification. Multi-coated optics provide bright, high-resolution images and the rubber armoring helps protect against bumps and drops so your binocs can provide years of use. Includes a neck strap, smudge removing chamois and padded carrying case. Ideal for birding, sporting events, boating, camping and hiking.

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MEADE 7-15X35 MIRAGE BINOCULARS

See What You’re Missing

These Mirage™ 7-15x35 zoom binoculars from Meade Instruments® will embiggen your world. The 35mm lens are small and light enough to carry around all day while the 7-15x zoom function lets you control your image’s magnification. Multi-coated optics provide bright, high-resolution images and the rubber armoring helps protect against bumps and drops so your binocs can provide years of use. Includes a neck strap, smudge removing chamois and padded carrying case. Ideal for birding, sporting events, boating, camping and hiking.

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$69.95 EACH

Visor Vision

This is a binocular visor, a visor with built-in binoculars. Karen in customer service calls them ultra-wacky, but some of us think they’re just the thing for anonymous golf, particularly if you don’t mind looking a touch froggish. In white plastic with an elastic band on the back and a pair of 3X (per mfr--we think that’s a slight exaggeration) acrylic eye pieces.

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BINOCULAR VISOR

Visor Vision

This is a binocular visor, a visor with built-in binoculars. Karen in customer service calls them ultra-wacky, but some of us think they’re just the thing for anonymous golf, particularly if you don’t mind looking a touch froggish. In white plastic with an elastic band on the back and a pair of 3X (per mfr--we think that’s a slight exaggeration) acrylic eye pieces.

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$3.95 EACH
$6.50
-39%

Rimless-Korsakov

Sorry, we’re trying to quit. It’s actually a rimless magnifier, not a Korsakov (we get them confused), in acrylic at 2X with a 4X, 7/8” dia inset at the top of the handle. Has a pair of white LEDs on the underside for the better to see with. Measures 8-1/4” long and includes a pair of “AA” batteries.

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ILLUMINATED RIMLESS MAGNIFIER

Rimless-Korsakov

Sorry, we’re trying to quit. It’s actually a rimless magnifier, not a Korsakov (we get them confused), in acrylic at 2X with a 4X, 7/8” dia inset at the top of the handle. Has a pair of white LEDs on the underside for the better to see with. Measures 8-1/4” long and includes a pair of “AA” batteries.

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$7.50 EACH

Heavy Bottom, Long Skinny Neck

Not so good in people, but great if you’re an emu, or this 4-1/2" dia x 2X magnifier on a 9” goose-neck. It’s attached to a weighted bottom so you can use it hands-free, and the bottom has felt to protect your table. Measures a 5-7/8" x 4-1/8" ellipse with a little paper-clip tray. Goose-neck unscrews for storage.

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2X GOOSE-NECK MAGNIFIER

Heavy Bottom, Long Skinny Neck

Not so good in people, but great if you’re an emu, or this 4-1/2" dia x 2X magnifier on a 9” goose-neck. It’s attached to a weighted bottom so you can use it hands-free, and the bottom has felt to protect your table. Measures a 5-7/8" x 4-1/8" ellipse with a little paper-clip tray. Goose-neck unscrews for storage.

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$12.50 EACH

Let There Be Lux

No, the light meter didn’t die with the film camera. This digital lux meter measures from 0-2000 x 1; 2000-19,990 x 10; and 20K-50K x 100 lux via a 2-1/8" LCD. Has range and power hold slide switches, a 1-1/2" dia frosted lens, and an 8” coiled cord. Measures 4-1/2" x 2-11/16" x 1-1/8", and comes with a 9V battery for power, and a carrying case.

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DIGITAL LUX METER

Let There Be Lux

No, the light meter didn’t die with the film camera. This digital lux meter measures from 0-2000 x 1; 2000-19,990 x 10; and 20K-50K x 100 lux via a 2-1/8" LCD. Has range and power hold slide switches, a 1-1/2" dia frosted lens, and an 8” coiled cord. Measures 4-1/2" x 2-11/16" x 1-1/8", and comes with a 9V battery for power, and a carrying case.

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$39.50 EACH

Folding Magnifier

Fold it just right and it looks like a square-billed toucan. Never mind. It’s actually a nice acrylic 2X folding magnifier. Lens measures 3-1/2" x 2-1/4" with a 3/4” dia 6X inset window and (2) white LEDs, the better to see by. Handle swings to (4) positions, including out of the way. You add a pair of “AAA” batteries.

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LED LIGHTED 2X MAGNIFIER

Folding Magnifier

Fold it just right and it looks like a square-billed toucan. Never mind. It’s actually a nice acrylic 2X folding magnifier. Lens measures 3-1/2" x 2-1/4" with a 3/4” dia 6X inset window and (2) white LEDs, the better to see by. Handle swings to (4) positions, including out of the way. You add a pair of “AAA” batteries.

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$9.50 EACH

Scope This Out

This nice tabletop, Celestron® UpClose spotting scope has a 60mm objective and a zoom eyepiece for a whopping 20-60X magnification. Strength-wise somewhere between binoculars and a telescope, this portable beauty is great for bird-watching, target-sighting, moon-gazing, and multiple hiking and nautical applications, including ridge-identifying and land-ho’ing. Has a rubber-coated housing, rubber eye-cup, and fully coated lenses. Comes with a soft case, a flight case with adjustable strap, and a 12” tripod. Limited lifetime warranty through Celestron®.

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60MM CELESTRON® SPOTTING SCOPE

Scope This Out

This nice tabletop, Celestron® UpClose spotting scope has a 60mm objective and a zoom eyepiece for a whopping 20-60X magnification. Strength-wise somewhere between binoculars and a telescope, this portable beauty is great for bird-watching, target-sighting, moon-gazing, and multiple hiking and nautical applications, including ridge-identifying and land-ho’ing. Has a rubber-coated housing, rubber eye-cup, and fully coated lenses. Comes with a soft case, a flight case with adjustable strap, and a 12” tripod. Limited lifetime warranty through Celestron®.

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$89.95 EACH

Look At This!

Big glass lens, measures 110mm (4.33”) dia, with a 133mm (approx 5-1/4”) focal length. No use for a lens? It makes a lovely desktop magnifier, plus it’s convex on both sides which makes it very satisfying to spin during introspective moments.

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110MM GLASS LENS

Look At This!

Big glass lens, measures 110mm (4.33”) dia, with a 133mm (approx 5-1/4”) focal length. No use for a lens? It makes a lovely desktop magnifier, plus it’s convex on both sides which makes it very satisfying to spin during introspective moments.

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$4.50 EACH

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