40mm Orion Sirius Plossl Telescope Eyepiece
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40mm Orion Sirius Plossl Telescope Eyepiece Overview
With a wide 43-deg apparent field, Orion's Sirius Plossl line of telescope eyepieces provide clear, sharp images of impressively high contrast. They're suitable for all telescope types: reflector, refractor, and catadioptric. Each 4-element Sirius Plossl eyepiece 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 eyepiece is fitted with rubber eyeguards and internally threaded to accept standard filters.
40mm Orion Sirius Plossl Telescope Eyepiece Feature
- The 40mm Sirius Plossl 1.25" eyepiece is ideal for all types of telescopes: reflector, refractor, and catadioptric
- Eyepiece offers a 43 degrees apparent field of view for clear, sharp images of impressively high contrast
- Fully coated optics with magnesium fluoride on every air-to-glass surface
- Superb 40mm focal length eyepiece excels at wide-field surveying and detailed observations of large diffuse subjects
- Threaded for use with all Orion 1.25" eyepiece filters
