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Think Plossl Eyepieces Are Expensive? Get Sirius!
Orion Sirius Plossl Telescope Eyepieces
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Orion Sirius Plossl Telescope Eyepieces
  • This 6.3mm eyepiece is ideal for all types of telescopes: reflector, refractor, and catadioptric
  • Offers a 52 degree apparent field of view for clear, sharp images of impressively high contrast
  • Fully coated with magnesium fluoride on every air-to-glass surface
  • Superb for high-power planetary and lunar observation
  • One-year limited warranty

It's no surprise that the eyepieces in our Sirius Plossl line are our best-selling telescope eyepieces. Quality this good usually costs a lot more.

Offering a wide 52° apparent field of view, this 6.3mm Orion Sirius Plossl Telescope Eyepiece provides extremely sharp images of impressively high contrast. It's ideal for all types of telescopes: reflector, refractor, and catadioptric. The Plossl 4-element design is renowned for its outstanding performance, and has become the standard by which all other telescope eyepieces are judged.

Fully Antireflection Coated
The Sirius Plossl optical system is fully coated with magnesium fluoride on every air-to-glass surface. Lens edges are blackened to reduce scattering of stray light and maximize contrast.

The lenses are mounted in black-anodized aluminum housings with a 1.25"-diameter chrome-plated brass barrel for durability and precision fit. The barrel is internally threaded to accept standard telescope filters. The built-in rubber eyeguard enhances viewing by helping to block out ambient light and position the eye.

This 6.3mm Orion Sirius Plossl Eyepiece is superb for high-power planetary and lunar observation, and well suited to double-star viewing when stable seeing conditions permit.

Please note this product was not designed or intended by the manufacturer for use by a child 12 years of age or younger.

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