20mm Orion Sirius Plossl Telescope Eyepiece
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20mm Orion Sirius Plossl Telescope Eyepiece Overview
With a wide 50-deg apparent field, our Sirius Plossl line of eyepieces provide clear, sharp images of impressively high contrast. They're suitable all telescope types: reflector, refractor, and catadioptric. Each 4-element Sirius Plossl 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. Lenses are mounted in black anodized aluminum housings with 1.25" chrome-plated brass barrels. Each is fitted with rubber eyeguards and internally threaded to accept standard filters.
20mm Orion Sirius Plossl Telescope Eyepiece Feature
- This 20mm focal length 1.25" eyepiece is ideal for all types of telescopes: reflector, refractor, and catadioptrics such as Maksutov-Cassegrains
- 20mm telescope eyepiece excels at low power scanning of open star clusters and viewing of nebulas and larger galaxies
- Offers a 52-degree apparent field of view for clear, sharp images of impressively high contrast
- Fully coated with magnesium fluoride anti-reflection coatings on every air-to-glass surface
- Plossl eyepiece design features 4 lens elements for clear, crisp views and high light throughput
