This extremely good quality folding jeweler's loupe is in polished aluminum and folds into a protective cover. It measures 1-5/8" x 13/16" and is teardrop-shaped when closed. Doublet lens, 18mm dia, 10X, lit by (2) very bright white LEDs, powered by (3) button-cell batteries that are included. It has a small loop for a chain, and comes in a plastic case with a small tool for accessing the batteries.

This 20-200X digital microscope from Celestron® has a built-in 5-megapixel 1600 x 1200 pixel digital camera that will take still photos, 5MP, 3MP, 1.3MP, VGA and 12MP interpolation, and video, VGA and 30fps, of any scientist's discoveries. It's easy to use--perfect for looking at stamps, bugs, coins, rocks, circuit boards, plants and tons of other tiny things. Good for professionals but completely appropriate for curious kids, too. Has a manual trigger on the 2.0 USB power cord, plus an adjustable 8-LED illuminator ring and a 6" adjustable stand on a 6-5/8" x 4-3/4" base. Comes with Celestron® Micro CapturePro software which features measuring and note taking features. This is the upgraded "B" version that works with Windows 7,8, & 10 and Mac 10.12 & 10.13.

The sport of the future? No, cork-lined polystyrene boxes for holding microscope slides, complete with numbered slots and inventory sheets on the lids. The boxes are 8-3/4" x 6-3/4" x 1-1/3" with hinged lids. They are stackable, and you might get them in a variety of colors.

Great little glass DCX lenses for all of your project needs.  Utilize their 48.3mm focal lengths for all classroom projects, or combine these with other lenses to build binoculars, magnifiers, microscopes and telescopes. These are seconds so may have small chips.

From Celestron©, who rules the skies! These are our best-selling binoculars! The very nice pair of 15 X 70 binoculars have multi-coated optics to reduce refraction and a weather-resistant rubber housing, and are a relatively light 5.2 lbs. They come with a carrying case, chamois and neckstrap, plus a handle/adapter for a standard 1/4" - 20 mount for a tripod. A lifetime warranty is available from Celestron©

A recipe from the Elizabethan Cable Food Network? No, just a couple of samples from our collection of (48) specimens preserved for your classroom examination, with (4) well-labeled specimens on each of (12) standard-size slides. You get animal, plant, insect, textile, and pollen and spore specimens, including camel hair, camellia leaf, plant louse, fruit fly, fern spore, bee wing, nylon, wool, lily pollen, bamboo shoot, goldfish scale, and three dozen more, including our homonymic favorite, hare hair. Grades three and up.

Our tabletop telescope from Celestron is an excellent choice for traveling or as a first telescope, which explains its “FirstScope” name. It’s a 76mm reflecting telescope with 20mm (15X) and 4mm (75X) 1.25” eyepieces and mounts for a finderscope. The mount/stand has a lazy-susan style swivel and a variable tension knob. The Accessory Kit includes 12.5mm (24X) and 6mm (50X) 1.25" eyepieces, a moon filter, a 5X24 finderscope, planetarium software ("THE SKYX") for Windows 7, XP, Vista, Mac 10.4.8 or later, a nylon carrying case for accessories.

Why yes, it could be. Most jeweler’s loupes are too bulky to slide into a pocket, but this 5X version has a built-in tweezers and folds to a slim 2-1/4” long x 1” x 1/2” thick. Doublet lens is 15mm across in a plastic body. There’s some slight edge distortion, but for the magnifying power, size, and convenience, it’s hard to beat.

Thick, but very desirable, like a nice fat slice of salami, these negative meniscus glass lenses are 55mm dia with a focal length of -169mm (think: reduction). Great for artists and crafters. Edges might have some slight chips, but that's surplus for you.

You bought one of our excellent microscopes - now you need interesting, good-quality slides. You need our Microscope Accessory Kit. The kit includes The World of the Microscope, a well-illustrated 48-page book that explains the instrument and how to use it. You get supplies to create your own slides, including a box of (72) standard glass slides, about 1" x 3", with ground edges; tweezers with which to position your specimens; a 4" glass dropper with a rubber bulb from which to drop small amounts of liquid onto the specimens; and (100) square pieces of #1 thickness cover glass to place over them. A great way to get focused.

Polished glass equilateral prisms. Equilateral because each edge of the end is the same length, 32mm. Thus, as all you geometry students know, each of the angles is also the same, 60 degrees. These are school grade and are fine for decorative and demonstration. They do a nice job of refracting light to produce a nice rainbow-like spectrum, but are definitely not up to instrumentation standards. The missing dimension, length, is shown below.

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. 3-1/2" x 4-3/8" x 1/16" thick.

Made specifically for attaching to pill bottles, this 1-3/4" dia magnifier has a 2X acrylic lens with a blue tint that increases readability. It’s mounted on a ring and bracket with a rubber strap to hold it in place on the bottle and keep the lens an inch above the label/instructions.

Has the print in your books been getting smaller? Fight back using this 3-1/2" long plastic magnifier with (2) lenses. The 2x lens is 1-3/4" dia., while the 6x lens is 3/4" dia. Kids will love using it to explore bugs, crystals and leaves up close.

Polaris 127mm is perfect for viewing celestial objects and delivers bright, detailed images. Features a stable Equatorial Mount with slow-motion controls, making it easy to track celestial objects as they move across the night sky. Aperture: 127mm Reflecting Telescope with f/7.9 Focal Length. Comes with (3) Eyepieces that provide low, medium and high powered magnification for viewing a wide range of objects (Moon, planets, or deep-sky). 2x Barlow Lens also included to double magnification - essentially like having 6 different eyepieces! Bonus Autostar® Suite Astronomer Edition Software on DVD - with over 10,000 celestial objects displayed (Windows® PC only).

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

These 3-1/4" dia magnifying glasses on 5” handles are a big step up from the traditional Holmesean versions. Acrylic 1.5X lenses are surrounded by a trio of super-bright white COB LEDs for improved clue detection. (Holmes would have killed for COB lights.) They run on (2) “AA”s, thoughtfully included. We’ll pick one in a color that will complement your deerstalker.

Nothing to it if you have these 20 x 70 binoculars with rubber-coated housing for ruggedness, blue-coated optics, and a K9 prism for sharp images. Great for camping, wildlife viewing, more and large enough for you to enjoy viewing the night sky. Measure 11-1/4” long overall and come with folding eye-cups, right-eye diopter adjustment, a standard tripod mount between the optics, adjustable neck strap and a carrying case. A real deal for the astronomy or nature lover.

Our newest Celestron® compound (biological) microscope is even better than the last one we offered. This one comes with a 3.5" color LCD viewing screen that rotates 180° for easy sharing in a lab, classroom or at home. It has an upgraded 5-megapixel camera that can record 625 hi-res photos or 20 minutes of 30fps video to the included 1GB SD card. The 4X, 10X and 40X objectives provide 40X, 100X and 400X optical magnifications, and the digital zoom raises it up to 1600X. On-screen, button controlled settings allow you to easily adjust exposure, image effects, a digital measuring reticle and other visual tweaks. Top and bottom independently adjustable LED illumination and a built-in 6 position filter wheel allow complete light adjustability. Also included are an AC adapter with 3 extra European adapters for those who travel, (5) prepared slides, USB and video out cables and a rigid lined 15" x 7" x 8.5" OA carrying case with a suitcase-handle and shoulder strap, for storage, field work or classroom visits. Carries a 2-year manufacturer's warranty.