The SVBONY SV131 Plössl Eyepiece range offers reliable optical performance and excellent value for visual astronomy. Available in 6mm, 12mm, 17mm, 25mm, and 40mm focal lengths, these classic 1.25" Plössl eyepieces are well suited to lunar, planetary, and deep-sky observing. With fully multi-coated optics and a simple, proven optical design, the SV131 series is an ideal upgrade from basic kit eyepieces.

• Plössl optical design (4 elements / 2 groups) for sharp, well-corrected images
• 48° apparent field of view for comfortable, natural framing
• Fully multi-coated optics to improve contrast and light transmission
• Blackened lens edges to reduce stray light and internal reflections
• Standard 1.25" barrel compatible with most telescopes and filters
• Choice of focal lengths covering low to high magnification needs

Clear Views of Lunar, Planetary & Deep-Sky Objects

The SV131 Plössl eyepieces are particularly effective for observing a wide range of targets, from the Moon and planets to brighter deep-sky objects such as nebulae, star clusters, and galaxies. Their straightforward optical design delivers crisp views with good contrast, making them suitable for extended observing sessions.

Fully Multi-Coated Optics & Stray Light Control

All SV131 eyepieces feature full multi-layer anti-reflection coatings on the optical surfaces, helping to maximise light transmission and reduce glare. Matte-blackened lens edges further suppress stray light, improving contrast and producing darker sky backgrounds.

Classic Plössl Optical Construction

The 4-element, 2-group Plössl design is a long-established standard in astronomy, valued for its balance of image sharpness, simplicity, and affordability. This makes the SV131 range a dependable choice for both beginners and experienced observers.

Comfortable Viewing & Durable Build

With up to 19mm eye relief (depending on focal length), the SV131 eyepieces allow relaxed viewing with reduced eye strain. The all-metal housing features matte internal threading to minimise reflections, a chrome-plated barrel for durability, and a rubberised anti-slip grip for secure handling.

Wide Compatibility & Filter Support

Each eyepiece uses a standard 1.25" (31.75mm) barrel with an M28.5 × 0.6 filter thread, making them compatible with most amateur telescopes and standard 1.25" filters. They work well with refractors, Schmidt-Cassegrains, Maksutovs, and Dobsonians.