TS Optics APO Barlow 2x 1.25″ Barlow Lens
The TS Optics APO Barlow 2x is a compact, optically superior accessory for astronomers who want to double their telescope's magnification without any compromise on image quality. Its compact design makes it compatible not only with Newtonian telescopes but also with refractors and diagonal mirrors - without touching the mirror surface. This makes it one of the most versatile Barlow lenses in its class. The construction is robust yet lightweight, so it feels comfortable to use during every observing session.
Three-Element Apochromatic Design
The three-element apochromatic optical design delivers significantly better field correction than standard two-element Barlow lenses. The apochromatic construction eliminates chromatic aberrations that would otherwise reduce contrast and sharpness - especially when observing planets and the Moon. The result is a clean, sharp and colour-accurate image across the entire field of view. The design also preserves the original optical character of your eyepiece and introduces no unwanted optical errors.
Fully Multi-Coated Optics
All optical surfaces carry full multi-coatings (FMC), maximising light transmission and minimising unwanted reflections and scatter. This directly improves brightness and contrast - something you will appreciate when observing faint deep-sky objects or fine planetary detail. High-quality anti-reflection coating is the standard that customers rightly expect from premium TS Optics products.
Secure Clamping and Filter Thread
The brass compression ring clamping system holds your eyepiece or accessory precisely and gently, with no risk of scratching the barrel. Unlike a standard set screw, the brass ring distributes pressure evenly around the full circumference and locks the inserted eyepiece firmly in place. The Barlow lens also features a standard 1.25″ filter thread, so you can pair it easily with planetary filters, a Moon filter or any other standard filter. The large 26 mm clear aperture allows use with longer focal length eyepieces without vignetting, producing an evenly illuminated and sharp image across the whole field of view.
Universal Compatibility
This Barlow lens is fully compatible with most standard telescopes fitted with a 1.25″ focuser. Its compact length means it causes no focusing problems even with telescopes that have a limited focuser travel range. It suits both beginners and experienced astronomers looking for reliable, high-quality optics at a sensible price.
Ideal for Planets, the Moon and Double Stars
The TS Optics APO Barlow 2x is an ideal choice for observers who want higher magnification from their existing eyepieces without buying additional expensive short focal length eyepieces. Its compact dimensions also make it a practical addition to any travel kit. Thanks to universal compatibility with refractors, Newtonians and catadioptric telescopes, it suits a wide range of astronomers - from beginners taking their first steps to experienced observers who demand uncompromising optical quality.
Key Specifications
| Parameter |
Value |
| Magnification factor |
2x |
| Barrel diameter |
1.25″ |
| Optical design |
Apochromatic, 3 elements |
| Coatings |
FMC (Fully Multi-Coated), all surfaces |
| Clear aperture |
26 mm |
| Clamping system |
Brass compression ring |
| Filter thread |
1.25″ standard |
| Compatible telescopes |
Refractors, Newtonians, catadioptrics |
| Focuser compatibility |
1.25″ |
What You Get
- Doubles your magnification using eyepieces you already own
- Apochromatic 3-element design - sharper and more colour-accurate than standard Barlow lenses
- FMC coatings on all surfaces for maximum brightness and contrast
- Brass compression ring - gentle on eyepiece barrels, no scratching
- 1.25″ filter thread for use with Moon filters, planetary filters and more
- 26 mm clear aperture - no vignetting with wide eyepieces
- Compact size - fits refractors, Newtonians, catadioptrics and diagonals
- Suitable for beginners and advanced observers alike
