DO-GSO Plossl 15mm 1.25 inch Eyepiece

Precision-crafted by GSO, the DO-GSO Plossl 15mm eyepiece delivers sharp, high-contrast views that rival far more expensive optics. Its fully multi-coated 4-element design and meticulous edge blackening minimize stray light, making it an outstanding choice for lunar, planetary, and deep-sky observation.

Highlights

• Classic 4-element Plossl design for excellent color correction and edge sharpness
• Fully multi-coated lenses maximize light transmission and reduce internal reflections
• Standard 1.25" barrel with filter threads fits virtually any telescope focuser
• Fold-down rubber eyecup for comfortable viewing with or without eyeglasses
• Anodized aluminum barrel with blackened lens edges to minimize stray light

In daily use

This 15mm focal length eyepiece provides balanced magnification for most telescopes, ideal for observing the Moon's craters, Jupiter's cloud belts, Saturn's rings, and bright deep-sky objects like star clusters and nebulae. The 52° apparent field offers an immersive experience without excessive head movement, while the 11mm eye relief ensures relaxed viewing sessions. The fold-down rubber eyecup accommodates eyeglass wearers, and standard filter threads allow easy attachment of lunar or nebula filters to enhance contrast.

Full specifications

• Eyepiece design: Plossl
• Focal length: 15 mm
• Barrel size: 1.25" (31.7 mm)
• Apparent field of view: 52°
• Eye relief: 11 mm
• Number of lens elements: 4
• Lens coating: Fully multi-coated (FMC)
• Filter threads: Yes, standard 1.25"
• Eyecup type: Fold-down rubber
• Barrel material: Anodized aluminum
• Lens edge blackening: Yes
• Optical manufacturer: GSO (Guan Sheng Optical)
• Compatibility: Telescopes with 1.25" focusers
• Application: General astronomical observation
• Optical quality: High contrast, sharp images
• Color: Black

Final note

With its premium GSO optics and robust build, this eyepiece is a reliable companion for both casual stargazers and serious observers seeking exceptional value.