BEST SELLERS

This green, rubber-coated 4X binocular from Celestron® is kid-sized but otherwise very high quality with coated lenses, an 18" neck cord, belt-mount carrying pouch and lens cloth. Has 30mm objective lens diameter and a 4.3 degree X 225-foot field of view at 1,000 yards.

You won’t misplace this Sherlockian magnifier. Measures 11” long overall, with a 5" dia 1.5X acrylic lens with a 1” 3X window inset. Handle is 5” alone and the lens has (3) white LEDs for the better to see with. You add (4) “AAA” batteries in the handle and start solving mysteries immediately.

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.

Treat yourself to an assortment of our finest negative meniscus lenses in sizes between 14mm and 52mm with focus lengths between -29.7mm and -169mm. Negative meniscus lenses spread light instead of concentrating it, so they're sort of de-magnifying glasses. (Perfect for reading if your vision is too good.) You get (4) lenses in each of (5) sizes for (20) total.

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.

These standard-size 2” x 2” slides in tan plastic frames are polarized despite not having an opinion on anything. It’s the polarizing filter in the lens that makes them polarized. You’ll get (2) so you can do cool experiments to impress your friends or blow your own mind. Get all sciencey or creative, or however you get when you’re at your best.

For students or professionals, this Celestron® Deluxe Handheld Digital Microscope that captures still images and videos is a terrific computer accessory. Plug the USB 2.0 cable into your computer's port and take advantage of the built-in, upgraded 2MP CMOS sensor, 10X to 200X magnification, and 8-LED illumination. It features a 1 sec. to 1/1000 sec shutter speed, 1920x1080, 1280x720 and 640x480 resolutions, max 30fps videos, 10mm to 150mm manual focus and a 2 element glass lens with IR Cut and EFL 158mm. The 4-oz, 4-1/4" x 1-1/4" dia scope may be handheld, or slipped into its metal stand for steadier viewing. Includes CD-ROM software with measurement function and note-taking and a calibration tool. Works with Windows 7/8/10 and MAC OSX 10.12 and up. Very cool.

This little 5X, 3/4" dia glass magnifier for home, business or hobby use slides into its own 2" x 1-3/8" x 3/4" black case. Slide the magnifier out all the way and it automatically turns on the white LED light, just like your fridge, except it's not cold. (Don't want the light? Just pull it out part-way.) Runs on (3) button-cell batteries, included and replaceable.

Nothing to it if you have these 20 x 70 binoculars with rubber-coated housing for ruggedness, anti-reflective 70mm blue-coated lenses, and a K9 prism for sharp images. You'll have a 367 foot field-of-view at 1000 yards which is great for camping, wildlife viewing, more and large enough for you to enjoy viewing the night sky. Measure 11-1/4” long overall, weigh-in at 3lbs and come with folding eye-cups, right-eye diopter adjustment, adjustable neck strap, a carrying case and a cleaning cloth for accidental thumbprints on the eyepieces. A real deal for the astronomy or nature lover. 367 Ft Field of View @1000 Yards

My First Microscope from GeoSafari® Jr.® is a colorful plastic 8X binocular inspection scope for pre-preschoolers. Includes a built-in white LED top illuminator, over-sized rubber eyecups and simple focus knob. Fixed stage holds flat or 3D objects, so there's no need for slides. All you add is (3) "AAA" batteries and a bunch of stuff for them to peer at, like insects and coins.

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.

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.

And no need to hang on, because this large, 9-3/8” x 6-1/2” Fresnel magnifying lens with approx 2X magnification is in a black plastic frame with folding legs. Stands approx 4” above a tabletop but stores flat. Also comes with a lightweight cord, so it will hang from your neck for close work sewing, knitting, or whatever. Try it once and you’ll wonder how you got along without it.

New, international-standard, full-sized illuminated student microscope, professional quality at a student price. Now comes with a variable intensity 5.5V LED cool illumination system with a built-in rechargeable battery and wall transformer for use or charging. This high-quality compound microscope has turret-mounted achromatic objectives, fine and coarse rack-and-pinion focus and substage diaphragm light control, and a metal frame. It is built to international DIN standards and accepts all DIN eyepieces and objectives. With extras like focus stop for slide protection, adjustable tilt and (2) spring clips, it is a fine instrument for most home science work and projects in the field. Our (36) piece assorted specimen set comes on (12) slides and is a great addition if you want to embiggin things asap.
*Specifications:
*Magnification: 40X, 100X, 400X.

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.

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 Levenhuk®, this Rainbow Plus student biological microscope has a 16X eyepiece; magnification of 64X, 160X and 640X; dual adjustable LED illuminators; adjustable iris; and coarse focus. Can be powered by (3) “ AA”s or the included adapter so you can do microscopic viewing in the field or at home. Includes the K50 experiment kit with specimens, forceps, slides, pipette, brine shrimp and more, along with an overview booklet and user’s manual. Metal body with glass optics. Has a lifetime warranty through the mfr.

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.