SVBONY SV137 Barlow Lens – 2× / 3× (1.25″)

The SVBONY SV137 Barlow Lens is a fully multi-coated 1.25″ telescope accessory designed to increase effective focal length while maintaining image contrast and sharpness. Available in both 2× and 3× magnification options, it offers flexibility for lunar, planetary, and double-star observing depending on seeing conditions and telescope capability.

Choice of 2× or 3× Magnification

The SV137 is available in two magnification variants:

• 2× – Ideal for general high-power observing with improved image stability
• 3× – Suitable for pushing magnification further when atmospheric seeing allows

Both options allow observers to achieve higher magnification without resorting to extremely short focal-length eyepieces.

Fully Multi-Coated Optics

The fully multi-coated optical surfaces enhance light transmission and reduce internal reflections, helping preserve contrast and brightness when observing high-detail targets such as the Moon and planets.

Blackened Lens Edges

Internally blackened lens edges help suppress stray light and improve contrast, contributing to cleaner, more defined images at higher magnifications.

Internal Brass Compression Ring

An internal brass compression ring securely holds eyepieces in place while helping prevent barrel marring, offering both stability and long-term protection of your accessories.

Durable Construction & Standard Compatibility

Housed in a solid metal body and featuring a standard 1.25″ barrel, the SV137 is compatible with most telescopes and eyepieces, making it a versatile addition to a wide range of observing setups.

Technical Specifications