Like border collie puppies, these small magnifiers are extremely cute and as bright as anything, with (4) white LEDs around the lens, plus (1) UV LED for your forensic needs. The 1” dia 2.5X acrylic lens is in a 4” long handle in black, red or sky blue (and we’ll pick). Run on (3) button-cell batteries, included.

Best done with this computerized StarNavigator 90mm Maksutov-Cassegrain telescope from Meade® Instruments. Enjoy the stunningly sharp images while you let the telescope take you on a guided tour of 30,000+ celestial objects. Includes the AudioStar hand controller, which not only guides the scope but also tells you, through its built-in speaker, all about what you’re viewing. Features a 1250mm focal length (F13.8), 90mm (3.5”) aperture, single-speed internal focuser and an internal flip-mirror for celestrial/terrestial viewing or photography. Includes (2) Plossl eyepieces, 26mm (48x) and 9mm (139X), full-sized aluminum tripod, red-dot finder and vixen-style dovetail. Works on (8) “AA” batteries or external power source, not included.

Please Note: Your entire order will ship standard ground when purchasing this item. Contact us for expedited shipping information. Thanks!

Optimize the power of your microscope and get the sharpest possible image with a drop of clear, colorless immersion oil between the lens and your slide. This 0.5 oz tube of low-viscosity Resolve® Immersion Oil from Richard-Allan Scientific has a refractive index of 1.5150. It is non-drying and non-hardening, and will not damage lenses or valuable slides. But it will definitely enhance your view!

See clearly with this 20X stereo microscope; coins, fossils, circuit boards, bugs and splinters have never been larger. Dual 10X eyepieces provide a stereoscopic view with a 2-1/2" to 3-7/8" working distance while an LED illuminator powered by (2) "AA" batteries (included) brightens and a black/white stage plate with aluminum clips improves your contrast. Eyepieces are also adjustable for those who like to play with interpupillary distance and it stands 10-1/2" tall. Great for students, hobbyists, crafters and more.

Microscopy marches on. This 20-500X portable digital microscope with a video recording function has a 3” LCD, 5Mp sensor, resolution between 1.3-12Mp as well as VGA, 8-LED illumination and a rechargeable battery, which will power it for 4 hours. Includes a 5 volt adapter for charging, a ball and socket pedestal stand, A/V cable, carrying pouch and chamois. Does some nifty tricks, including extrapolated measurements from kilometers down to microns. Measures 5” x 4” x 1-1/4” overall and weighs just 4 oz. It’s from Levenhuk®, with a lifetime warranty.

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!

This achromatic doublet lens (them what won't distort color or shape any more than they absolutely have to) is in an oval metal mount with a small mounting hole opposite a set of prongs. Originally a projector lens of some sort, it measures 20mm dia (approx 3/4") with a 47mm (approx 1-7/8") focal length. Despite the fact that you could mount it in its current mounting using the mounting hole, we suspect you're just going to use it as a nice 5X loupe.

A beautiful glass achromat lens. 34mm diameter and 66mm focal length. If you're In need of a lens for an art project or DIY magnifier, this is the lens for you. These are old military surplus so we have a limited quantity. Get yours today!

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.

This Velleman DVM 1300 Light Meter displays measurements between 0.1 and 50K lux in (5) different ranges on a liquid crystal display with (4) 1/2" high digits. Filtered 1-1/2" dia sensor on a 13" coiled cord. The 4-5/8" x 2-3/8" x 7/8" case has reflective tape on the back for dealing with a shadow. Comes in a vinyl case with a recommended-illumination chart and a 12-volt battery.

If you want something done right…. And yes, that includes laboratory slides. This 17-piece slide-making kit from Elenco includes (10) blanks, (12) cover glasses, labels, and static slide covers, magnifier, (2) vials & graduated cylinders, shrimp eggs, methylene blue, micro-hatchery, goggles, and more.

This 96pp, full-color, heavily illustrated book, "The Usborne Internet-Linked Book of Astronomy & Space," is written with a quick-link to the publisher's website, where there are updated links to internet sites that correspond to specific pages of the text. Sections include the solar system, stars, constellations, telescopes, photography and a plethora of astronomical facts and lists. From Usborne Publishing.

Advanced Student Microscope With extra-sturdy construction, international-standard DIN, fully coated eyepiece and objectives, this is an excellent student microscope. It provides good resolution and centering, and maintains focus when objectives are changed. Stage clips, rack stops, smooth positive mechanical movements, built-in illuminator, coarse and fine focus.

• Magnification: 40X, 100X, 400X, 1000X (oil)

• Objectives: 4X, 10X, 40X, 100X (oil) spring-loaded, parfocal, centered achromatic.

• Eyepiece: 23mm 10X wide field with pointer.

• Illumination: Built-in 5 watt fluorescent, 110V with condensor.

• Stage Size: 120mm x 110mm with locked-in stage spring clips.

• Focusing: Rack and pinion, coarse & fine controls.

• Weight/Height: 8 lbs/14".

• Viewing Angle: 45°

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!

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).

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.

Clip this little lighted scope onto your smart phone and use the phone's zoom feature to show images (and take photos) up to 30X magnification. Our Optics Guru Paul says it has no business working this well for under ten bucks. Measures 2-5/8" x 1-1/4" and comes with (3) replaceable button-cell batteries for the light. Fits most major brands, like iPhones and Androids and Windows (oh, my!), and probably most tablets, too.

20mm DOUBLE CONCAVE (DCV) LENS, DCV-K9, D20-2-AR, WITH HOLE Material: H-K9-L, 20mm , w/ hole. AR coated for 150-850 nm. 248-D 110184-2 *Available in-store as special order only, please call.