Sirius Plössl, 6.3mm 1.25″

Code: OR-08739

This 6.3mm Orion Sirius Plossl eyepiece is ideal for all types of telescopes: reflector, refractor, and catadioptric
Superb 6.3mm focal length 1.25″ eyepiece for high-power planetary and lunar observation in any telescope
Offers a 52-deg apparent field of view for clear, sharp views of impressively high contrast
Fully coated optics with magnesium fluoride on every air-to-glass surface to reduce reflection and increase light transmission
Eyepiece barrel threaded for use with 1.25″ Orion filters


Out of stock


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 6.3 mm 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.

The Sirius Plossl optical system is multi-coated for excellent light transmission and bright views. 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 6.3 mm 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.

Additional information

Weight 1 lbs
Dimensions 2 × 2 × 2 in


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