Telescopes & Astronomy

• With fully multi-coated 8-element optics, the 20mm focal length telescope eyepiece will amaze you with true-color views of the night sky
• Orion LHD eyepieces feature high-index, low-dispersion lanthanum glass to eliminate chromatic aberrations for exceptionally clear views
• All Orion LHD telescope eyepieces boast an ultra-wide 80-degree apparent field of view for an immersive viewing experience
• Long 20mm eye relief and large 30mm-diameter eye lens lets eyeglass wearers enjoy the view comfortably without removing glasses
• The 20mm LHD eyepiece features a tapered 2" barrel which is threaded for use with 2" eyepiece filters

• This 4mm focal length, 8-element telescope eyepiece will amaze you with vivid, panoramic views of the night sky
• Orion LHD eyepieces feature high-index, low-dispersion lanthanum glass for exceptional control of chromatic aberrations to provide true-color views with outstanding clarity
• All Orion LHD telescope eyepieces boast an ultra-wide 80-degree apparent field of view for an immersive viewing experience
• Long 20mm eye relief lets eyeglass wearers enjoy the view comfortably without removing glasses
• The fully multi-coated 4mm LHD eyepiece features a tapered 1.25" barrel which is threaded for use with 1.25" eyepiece filters

The Sirius 3x Barlow lens triples your telescope's magnification, letting you explore lunar craters and planetary details with stunning clarity. Its fully multi-coated, 3-element apochromatic design minimizes chromatic aberration for crisp, sharp images, while the built-in M42 thread doubles as a T-adapter for easy DSLR or SLR camera attachment.

• High-magnification 5mm focal length 1.25" eyepiece designed for exceptional planetary and lunar viewing through any telescope
• Flat field eyepiece design ensures sharp focus out to the edge of its wide 55-degree apparent field of view
• Barrel distortion and field curvature commonly seen in standard eyepiece designs are not seen in Orion Edge-On eyepieces
• Features a long 20mm eye relief for comfortable with or without eyeglasses

• High-magnification 12.5mm focal length 1.25" Edge-On Planetary eyepiece designed for exceptional views of the Moon and planets as well as compact celestial objects
• Flat field design ensures sharp focus out to the edge of their wide 55deg apparent field of view
• Barrel distortion and field curvature commonly seen in standard eyepiece designs are delightfully absent in the 12.5mm Edge-On Planetary
• Telescope eyepiece features a long 20mm eye relief for comfortable viewing even with eyeglasses on
• This amazingly affordable Orion Edge-On eyepiece won't have you on edge financially!

• This big, 2" eyepiece with 28mm focal length offers bright, sharp and pleasing views of deep-space objects
• 3-element lens design with multi-coatings for efficient light transmission
• Eye relief is a long 20mm, particularly attractive to eyeglass wearers
• Delightfully free of pincushion distortion and chromatic aberration
• Threaded for use with 2" eyepiece filters