1.25" Zoom Eyepiece 3–8mm for Planetary Viewing

Achieve sharp, high-contrast planetary and lunar views without constantly switching eyepieces. This 1.25" 3–8mm parfocal zoom eyepiece offers a wide 56° field of view and constant 10mm eye relief, making it an excellent choice for serious observers. Ideal for short focal length refractors and planetary setups, this eyepiece delivers comfortable magnification control with click-stops for precise adjustments—all without needing to refocus as you zoom. It’s fully multi-coated for better light transmission, and the blackened lens edges reduce stray light, enhancing contrast and clarity.

Key Features

• Parfocal zoom from 3mm to 8mm with no refocus needed

• Smooth 56° field of view across the entire zoom range

• Consistent 10mm eye relief for comfortable extended viewing

• Fully multi-coated optics for enhanced contrast

• Click-stops at 3, 4, 5, 6, 7, and 8mm for quick adjustments

Specifications

• Focal Length: 3–8mm

• Apparent Field of View: 56°

• Eye Relief: 10mm

• Barrel Size: 1.25" (31.7mm)

• Lens Construction: 6 elements in 4 groups

• Coating: Fully Multi-Coated

• Filter Thread: M28.5x0.6

• Parfocal: Yes

• Rubber Eye Guard: Fold-down style

• Barrel Type: With safety undercut

Package Contents

• 1 x 3–8mm Zoom Eyepiece (1.25")

• 1 x Foldable Rubber Eyecup (pre-installed)

• 1 x Dust Cap Set

Note:
This eyepiece is ideal for visual astronomy including lunar, planetary, and solar observations with compatible telescopes using a 1.25" focuser.