2" Eyepieces & Barlows

The Sirius 2" Parfocal Ring eliminates the need to refocus your telescope every time you swap eyepieces. Simply lock the ring onto each eyepiece barrel at its precise focus point, and enjoy seamless, shake-free transitions between magnifications during your observing sessions. It's also ideal for astrophotography, allowing you to match your calibrating eyepiece's focus to your camera for fast, accurate results.

Sirius 2 " 26mm 70 Degree Eyepiece

• 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

The Sirius Optics 80° UWA 20mm eyepiece delivers an expansive, immersive field of view with fully multicoated high-index glass for maximum light transmission. With a generous 22mm of eye relief and no kidney bean effect or ghost images, this 2-inch eyepiece is ideal for deep-sky observation, letting you push your telescope to its magnitude limit in comfort.

The Explore Scientific 68° Series 28mm Waterproof Eyepiece delivers an immersive wide-field viewing experience with its generous 68-degree apparent field of view and long eye relief. Argon-purged and fully sealed, this 2-inch eyepiece is impervious to internal fogging, moisture, and fungal growth, ensuring lasting optical clarity in any conditions. Advanced multi-coated optics provide high contrast, sharp resolution, and a flat field for exceptional observing sessions.

Explore Scientific Waterproof Eyepieces - Comfort, Quality, Value

The 2" diameter 32mm Explore Scientific 62° Series eyepieces are excellent flat-field multi-element oculars that can transform your visual astronomy experience. With an apparent field of view of 62 degrees and near parfocal design, these eyepieces offer incredible value in a very nice eyepiece.

Explore Scientific Waterproof Eyepieces - Comfort, Quality, Value