Orion 25mm Sirius Plossl Eyepiece - 1.25"

Orion 25mm Sirius Plossl Eyepiece - 1.25"
Item # OR-8741
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  • The Orion 25mm focal length Sirius Plossl Eyepiece - 1.25" is ideal for all types of telescopes: reflector, refractor, Mak-Cassegrains, and Schmidt-Cassegrains.
  • The 25mm Sirius Plossl 1.25" eyepiece by Orion provides crisp views of many deep-sky objects including nebulas and star clusters.
  • A great 25mm focal length eyepiece for moderate-power observations of the Moon and planets of the solar system.
  • Fully coated with magnesium fluoride lenses provide bright views with impressively high contrast.
  • Offers a 52-degree apparent field of view for clear, sharp images of celestial and terrestrial fare.


Orion 25mm Sirius Plossl Eyepiece - 1.25"

Offering a wide 52° apparent field of view, this 1.25" Orion Sirius Plossl 25mm 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. It's no surprise that Orion Sirius Plossl eyepieces are best-sellers.

The Sirius Plossl 25mm eyepiece by Orion 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 correctly position the eye on the eyepiece lens pupil.

This 25mm eyepiece excels for moderately low power scanning of open star clusters and viewing of extended nebulas and larger galaxies.

Limited Warranty against defects in materials or workmanship for one year from date of purchase.

This item has a product number: OR-8741.

Additional Information

Additional Information

SKU OR-8741
Manufacturer Orion
Optical Design Plossl
Barrel Size 1.25"
Warranty Orion Limited Warranty
Eyepiece Field of View - Apparent 52.0°
Eyepiece Focal Length 25.0mm
Eyepiece Eye Relief 16.9mm
Eyepiece Manufacturer Series Orion Sirius
Eyepiece Weight 4oz
Number of Lens Elements & Groups 4
Special Feature None
Comes with Dust Caps? Yes
Comes with Eye Guard? Yes
Included Items

Included Items

  • Eyepiece, rubber eyeguard, caps.
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