Orion 15 mm Sirius Plossl 1.25" Eyepiece
Orion 15 mm Sirius Plossl 1.25" Eyepiece
The Plossl 4-element design is renowned for its outstanding performance. Offering a wide 52° apparent field of view, Orion Sirius Plossl telescope eyepieces provide clear, sharp images of impressively high contrast. They're ideal for all types of telescopes: reflector, refractor, and catadioptric such as Maksutov-Cassegrains and Schmidt-Cassegrains. This medium power, 15 mm focal length eyepiece is ideal for both deep sky objects as well as planetary viewing.
The Sirius Plossl optical system is fully coated with magnesium fluoride on every air-to-glass surface. Lens edges are blackened to both reduce scattering of stray light and maximize contrast.
The lens edges are mounted in black-anodized aluminum housings with 1.25" diameter barrels for durability and precision fit in 1.25" telescope focusers, or 2" focusers equipped with a step-down 1.25" eyepiece adapter (not included). Each barrel is internally threaded to accept 1.25" Orion filters. The built-in rubber eyeguards enhance viewing by helping to block out ambient light and properly position the eye.
- Focal Length: 15 mm
- Apparent Field of View: 52°
- Number of Lens Elements: 4
- Barrel Size: 1.25"
- Eye Relief: 13 mm