$25 to $50

Features Three magnification settings and fully focusable make it perfect for viewing any object down to the cellular level 900X Microscope Set i...

The neutral density filter transmits light uniformly across the entire visual spectrum. It serves as an excellent filter to reduce glare and irradi...

Description Compact, rugged ABS plastic case fits in the palm of your hand – a mere 4.5 inches long, 1.3 inches high and 1 inch wide. DUAL Ultra-b...

Buy Any Four In-Stock Premium Waterproof Eyepieces, Get A Free Soft-Sided Eyepiece Case! To Activate Deal: Step 1 - Add this Soft-Sided Eyepiece Ca...

If you need a Sun Catcher Solar Filter for 10-inch and 12-inch Dobsonian telescopes, purchase SC14-00. Cassiopeia Observatory Review - Click Here...

Description This T-Shaped Finder Scope Base is specifically designed to allow you to secure one of Explore Scientific’s high-quality finder scopes...

Description Connect your Bresser Microscope or Telescope with a Nikon SLR camera and take images or videos of your observed object! The Bresser T-...

Features Foldable binoculars for hikers, lightweight and space saving High magnification: 12x Also suitable for spectacle wearers Dimensions: 139...

Features Foldable binoculars for hikers, lightweight and space-saving Large field of view: 126 m With dioptre adjustment and foldable eyecups als...

Explore Scientific Rack and Pinion Focuser Extension Tube adds half an inch to our 2-inch Rack and Pinion focusers on our ED APO telescopes. CA Res...

Features Learn how metal detectors work Build a handheld metal detector with adjustable sensitivity Discover how security checkpoints function by...

Features Learn the basics of circuitry as you build your own boxing robots Have a fun bot-battle with family and friends Individual scoreboards a...

Description Dual plug (DB9 FTDI chipset and USB 2.0 Mini B) works with PMC-Eight OPENGoTo systems, allowing ASCOM communications between a compute...

Features Flashlight mode has a low beam option that illuminates up to 40 meters and a high beam option that reaches up to 100 meters Floodlight m...

Ideal for any situation, a unisex heavy blend crewneck sweatshirt is pure comfort. These garments are made from polyester and cotton. This combinat...

Features Wireless rain gauge with digital display 9-day precipitation history and rain alarm Time (12 / 24h) Date with language selection for the...

Features Floating sensor for pools, jacuzzis etc. IPX7 waterproof rating LCD temperature display (°C/°F) Operating temperature range -5°C ~ 60°C ...

Explore Scientific Thermo-Hygrometer Sensor compatible with WSX Series Weather Stations. Outdoor Range: -22 to 140 Degrees Fahrenheit ( lithium Ba...

Description Connects Telescope, Spotting Scope with DSLR Camera The T Ring is designed to be used for Astrophotography in conjunction with other ...

Description Converts Eyepiece Thread This adapter converts the eyepiece thread. Makes it possible for you to use different thread eyepiece. Specs...

One size fits all 100% Cotton velcro cap. 100% cotton One size fits all CA Residents: Prop 65 WARNING(S)

Features Video camera mounted on a 27" flexible coil lets you peer over, under and around obstacles and into small spaces. Bright LED light helps...

Features 1.25 "linear polarization filter Socket with 1.25 "filter thread Also suitable for Lunt Herschel wedges Description Simple linear 1.25...

Features 40mm aperture is perfect for nighttime moon gazing and daytime nature watching. Two interchangeable eyepieces give you magnifications of...

Features Radio Controlled Digital Time Display Clock with NIST WWVB Receiver Weather Forecast with Indoor/Outdoor Temperature Display Dual Alarms...

Features Modern design with touch key Clear and large display with weather forecast and comfort level indication Radio-controlled time with dual ...

Description For Prime Focus Photography with Telescope Leaves the inner diameter large by attaching a T Ring by screwing in each of the knobs, i...

Features Use Instead of Finderscope Wide 11° Apparent Angle of View Crosshair Aiming Reticle Extreme Low-Power 100mm Focal Length 1.25" Diameter ...

Description It allows you to use an polar alignment scope PF-LII, polar alignment scope PF-L or SX polar axis scope for the POLARIE U. The polar s...

Description For smooth setting up of POLARIE and AP equatorial mount The polar meter is a "unlikely" design that summarizes level, compass and in...

Description Converts Eyepiece Thread The adapter converts eyepiece thread. Makes it possible for you to use different thread eyepiece. Specs ...

Features High-quality NPL eyepiece with 50° field of vision Good contrast and reduced color aberrations Eye relief: 2.3 mm Connection: 31.7 mm, 1...

Features High-quality NPL eyepiece with 50° field of vision Good contrast and reduced color aberrations Eyepoint distance: 3.0 mm Connection: 31....

Features High-quality NPL eyepiece with 50° field of vision Good contrast and reduced color aberrations Eye relief: 4.5 mm Connection: 31.7 mm, 1...

Features High-quality NPL eyepiece with 50° field of vision Good contrast and reduced color aberrations Eye relief: 6.5 mm Connection: 31.7 mm, 1...

Features High-quality NPL eyepiece with 50° field of vision Good contrast and reduced color aberrations Eye relief: 11 mm Connection: 31.7 mm, 1 ...

Features High-quality NPL eyepiece with 50° field of vision Good contrast and reduced color aberrations Eye relief: 15 mm Connection: 31.7 mm, 1 ...

  S M L XL 2XL Width, in 17.99 20.00 21.97 23.98 25.98 Length, in 27.99 28.98 30.00 30.98 32.01 Sleeve length, in 26.93 27.17 27.56 27.9...

Description The UHC filter can reduce the negative impact of artificial lights and airglow when shooting deep sky objects. Just install the filter...

Description A plate for balancing optical tube This is a plate to balance an optical tube. Replace it with an attachment plate and use it. Length...

Description Possible to change the diameter SUsing this eyepiece adapter, you can convert from 42mm male T-thread to 31.7mm (1.25 inch). Thereby,...

Features Rock tumbler mimics natural weathering process to turn rough-edged rocks into smooth shiny stones with intriguing colors and patterns. J...

Description For mounting optical tubes onto SX, GP2 series mounts Fits the mount head of AXD or SXP directly. Fits New Atlux equatorial mount by u...

Description For DD-2 controller, Dew Heater 2, Color CCD Camera C0014-3M. Specs Dimensions 140x80x80mm Plug ID 2.1mm OD 5.5mm DC plug with cen...

This classic unisex jersey short sleeve tee fits like a well-loved favorite. Soft cotton and quality print make users fall in love with it over and...

This classic unisex jersey short sleeve tee fits like a well-loved favorite. Soft cotton and quality print make users fall in love with it over and...

Features Learn the basics of circuitry as you engineer fun games Design a maze and up the difficulty with a few bends of a wire Set up challenges...