Orion 6.3mm Sirius Plossl 1.25" Product Info

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 6.3mm 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 6.3mm 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.

Specifications:

• Design - Plossl
• Eyepiece focal length - 6.3 mm
• Barrel size - 1.25"
• Apparent field of view - 52.0'
• Eye relief - 4.1 mm
• Coatings - Multi-coated
• Number of elements - 4
• Filter threads - Yes
• Parfocal - No
• Field stop diameter - 5.0 mm
• Barrel security recess - No
• Blackened lens edges - Yes
• Rubber eyeguards - Yes
• Body material - Aluminum
• Case - No
• Weight (oz.) - 2
• Dimensions - 1.4 in. x 1.3 in.

Package Contents:

• Orion 6.3mm Sirius Plossl 1.25"