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For many people, the size of the NexStar 6 SE is a little like Goldilocks and the Three Bears – it's not too big, it's not too small, it's just rig...

This medium power 14mm Explore Scientific 82° field argon-purged eyepiece will show you surprisingly wide deep space panoramas with any type or foc...

The 100° apparent field of the Explore Scientific 14mm argon-purged waterproof 2" eyepiece provides incredible maximum field/medium power observing...

This 2" 12mm 92° field Explore Scientific hyper-wide eyepiece provides an exceptionally immersive medium/medium high power observing experience. Yo...

The first thing you notice about the AT90EDX is how quiet the view is. No color fringing on bright limbs. No softening at the edge. Just the object...

This 82° field Explore Scientific 18mm 2" argon-purged waterproof eyepiece makes observing with many telescopes feel like you're taking a stroll th...

This 6" Explore Scientific AR152 achromatic refractor optical tube is a sensational value - a big 6" (152mm) and fast f/6.5 refractor that's priced...

You're at the eyepiece, Jupiter is centered, and you want to push the magnification higher. Normally that means pulling out the eyepiece, fumbling ...

This Product Has Been Discontinued.  This Page Is Here For Informational Purposes Only. The Astro-Tech AT152EDT 152mm f/8 Triplet Apochromatic Refr...

Explore Scientific 6.5mm 82° 1.25" LER Eyepiece – A Premium Wide-Field Experience with Superior Comfort When it comes to high-performance eyepieces...

This Explore Scientific 20mm argon-purged waterproof eyepiece is a fine medium power 1.25" eyepiece whose substantial 68° field of view gives you "...

You may be startled at the amazingly wide expanse of inky black sky that greets you when you first look into the 92° field of this Explore Scientif...

You spend half the night swapping eyepieces. A 28mm wide-field for the big nebulae, a 16mm for the tight clusters, and something in between that yo...

The 100° apparent field of the Explore Scientific 20mm waterproof 2" eyepiece provides superb maximum field/medium power observing in all scopes, f...

This Explore Scientific 28mm argon-purged is a substantial 2" eyepiece that gives impressively sharp and contrasty wide field views of nebulas, com...

This four-element 1.25" 2x Explore Scientific focal extender (Barlow lens) has an exceptionally flat field and essentially no color fringing with a...

Explore Scientific 5.5mm 62° Series 1.25" Waterproof Eyepiece If you’re looking to pull in crisp planetary detail, split tight double stars, or ta...

Explore Scientific 3mm 52° Series Argon-Purged Eyepiece If you're looking for an ultra-high magnification eyepiece to push your telescope to its li...

Explore Scientific 127mm FCD100 Carbon Fiber ED Triplet Apochromatic Refractor (ES127CF-FCD100) A 5" apochromatic refractor has long been considere...

A six-inch refractor used to mean one of two things: spend big bucks on a premium triplet, or settle for a scope that shows purple halos on every b...

This extraordinary hardbound guide is a great way for the beginning observer to find and observe 344 of the sky's finest deep sky objects. Compiled...

This new four-element 2" 2x Explore Scientific focal extender (Barlow lens) has a 1.25" eyepiece adapter so you can use both 2" and 1.25" eyepieces...

This appears to be an eyepiece adapter that Radian 61 owners could thread onto the back of their telescope.  It is M63 threaded and has a brass com...