The SVBONY SV216 2× Telecentric Barlow Lens (1.25″) is a premium 4-element Barlow designed for high-resolution planetary observation and astrophotography. Its telecentric optical design preserves eye relief, maintains a flat field, and delivers consistent image scale across the field of view.

• 2× magnification factor doubles effective focal length
• 4-element telecentric optical design for a flatter field and reduced aberrations
• Fully multi-coated optics maximise contrast and light transmission
• 3-screw coaxial compression system improves optical axis alignment
• Maintains eye relief even with low-power eyepieces
• M28.5 × 0.6 filter thread for imaging and accessory compatibility

True Telecentric Optical Performance

Unlike standard Barlow lenses, the SV216 uses a telecentric 4-element design, which keeps the light rays parallel as they exit the lens. This results in a flatter field, consistent magnification, and minimal vignetting — particularly important for planetary imaging and cameras.

Optimised for Planetary Viewing & Imaging

The SV216 is especially well suited to observing and imaging the Moon, Jupiter, Saturn, and Mars. The telecentric design ensures that planetary discs remain sharp across the frame, making it ideal for both visual use and high-resolution astrophotography.

Stable 3-Screw Compression System

A precision three-screw coaxial compression ring keeps eyepieces and cameras securely centred, reducing tilt and improving optical alignment. This results in sharper images and more consistent performance, especially when imaging at high magnification.

Build Quality & Compatibility

The SV216 features a solid metal body, rubber grip ring, and standard 1.25″ barrel compatibility. It integrates easily with refractors, Newtonians, Dobsonians, and Schmidt-Cassegrain telescopes using 1.25″ accessories.

Technical Specifications

• Magnification: 2×
• Optical design: 4-element telecentric
• Barrel size: 1.25″
• Coatings: Fully multi-coated (FMC)
• Filter thread: M28.5 × 0.6
• Best use: Planetary, lunar & astrophotography