• Explore Scientific 120° Series 9mm Waterproof Eyepiece
  • Explore Scientific 120° Series 9mm Waterproof Eyepiece
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Explore Scientific

Explore Scientific 120° 9mm 2-Inch Waterproof Eyepiece — Ultra-Wide Single Eyepiece for Impressive Deep-Sky Views

Explore Scientific 120° 9mm 2-Inch Waterproof Eyepiece — Ultra-Wide Single Eyepiece for Impressive Deep-Sky Views

$899.99
$899.99
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Shipping calculated at checkout.

The Explore Scientific 120° 9mm Waterproof Eyepiece delivers one of the very widest views available in amateur astronomy — a staggering 120° apparent field of view that fills your vision edge to edge for a true "spacewalk" experience. At 9mm it gives high magnification with an enormous field, ideal for framing star clusters, nebulae, and detailed lunar and planetary views in an immersive window of sky.

Who it's for

Advanced observers with a 2" focuser who want the ultimate ultra-wide-field eyepiece and the most immersive view money can buy. If you're comparing eyepieces, see our guide on how to pick the proper telescope eyepiece.

Key features

  • 120° apparent field of view — among the widest available, for a total-immersion view
  • 9mm focal length for high magnification with a huge field
  • Fully multi-coated optics for bright, high-contrast images
  • Argon-purged, waterproof housing — sealed against fogging and moisture
  • 2" barrel for the largest true field of view

Specifications

Type Ultra-wide 120° waterproof eyepiece
Focal length 9 mm
Apparent field 120°
Coatings Fully multi-coated
Barrel 2"
Sealing Argon-purged, waterproof
SKU EPWP12009-01

Frequently asked questions

What makes a 120° eyepiece special?
The 120° field is so wide you can't take it all in at once without moving your eye — it creates a powerful sense of floating in space and frames large objects and star fields beautifully.

Do I need a 2" focuser?
Yes — this eyepiece uses a 2" barrel, so your telescope needs a 2" focuser or diagonal.

Is it for beginners?
It's a premium eyepiece best suited to observers who already have a capable telescope and want the widest possible view. Beginners usually start with a 62° or 68° eyepiece.

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Frequently Asked Questions

With a beginner telescope you can see a surprising amount — the craters and mountains on the Moon, the rings of Saturn, the moons of Jupiter, and star clusters like the Pleiades. As you get more comfortable, you can also spot nebulae and distant galaxies. Not sure which beginner telescope is right for you? Check out our Telescope Buying Guide.
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All telescopes on Telescope Wolves are hand-picked with beginners in mind. If you're unsure which telescope is right for you, check out our Telescope Buying Guide.
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