Astro-Tech

There's a magnification range where deep-sky observing gets interesting — where globular clusters stop looking like fuzzy spots and start resolving...

Ten millimeters splits the difference between deep-sky and planetary magnification — high enough to resolve globular clusters and show structure in...

This Astro-Tech 12mm Paradigm Dual ED medium power eyepiece has outstanding performance at a price that will make you wonder why other good quality...

Thirteen millimeters is the sweet spot for a lot of telescopes. In a 10-inch f/5 Dobsonian, it gives you 96x — enough magnification to resolve the ...

The 13mm is the transition point — high enough magnification to show real detail in globular clusters and planetary nebulae, low enough to hold a u...

You've been observing with the stock 25mm eyepiece for a few months. You know the Orion Nebula by heart at low power. But you've noticed that when ...

This Astro-Tech 15mm Paradigm Dual ED eyepiece gives you the outstanding medium power performance of a high-priced eyepiece at a price that will ma...

Sixteen millimeters is the all-rounder focal length in a 1.25" barrel. In a 10-inch f/5 Dob, it gives you 78x — high enough to darken the sky backg...

This Astro-Tech 18mm Paradigm Dual ED is an excellent medium to medium low power eyepiece for lunar observing, encompassing globular clusters, pick...

The Astro-Tech 19mm Premium Flat Field keeps the field wide at 65°, and delivers 20mm of eye relief that works even if you wear glasses. It's not a...

Drop this eyepiece into a 12-inch Dobsonian and you'll understand what 100° does to a deep-sky view. The Orion Nebula doesn't just sit in the cente...

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 economical Astro-Tech #AT24IL illuminated reticle 1.25" eyepiece helps you align your go-to telescope on the sky, check your polar alignment fo...

This Astro-Tech 25mm Paradigm Dual ED is an excellent medium to low power eyepiece for encompassing open clusters, picking up detail in emission an...

The 32mm Plössl that came with your telescope served you well. You learned the sky with it. But somewhere along the way you noticed: the field is n...

The first time you swap out a standard Plossl for the 28mm UWA, the difference hits you immediately. The field opens up from 50° to 82° — nearly th...

This Astro-Tech 3.2mm Paradigm Dual ED eyepiece is excellent for medium high to high power magnification viewing with short to medium focal length ...

High-power planetary eyepieces have a reputation problem: the higher the magnification, the narrower the view, and the faster the planet drifts out...

The 4.8mm XWA is the eyepiece you pull out when the atmosphere cooperates and you want to push your scope to its limits. In a 12-inch f/5 Dobsonian...

This product has been discontinued and is here for informational purposes only. This 4mm Astro-Tech Value Line is one of the shortest focal length ...

Four millimeters is the extreme end of useful magnification in a 1.25" eyepiece — the one you reach for when the atmosphere is dead calm and the pl...

High-power eyepieces used to mean a choice: pay for premium glass, or squint through a cheap 4mm Plössl with 3mm of eye relief and a field the size...

This Astro-Tech 5mm Paradigm Dual ED eyepiece is excellent for medium to medium high magnification viewing with short to medium focal length refrac...

At 7mm, you're pushing into serious magnification territory. In a 10-inch f/5 Dobsonian, the 7mm XWA delivers 179x — high enough to resolve fine pl...