Omegon 5x Premium APO Barlow lens 1.25″
Looking for a way to significantly increase your telescope's magnification without buying a new set of short focal length eyepieces? The Omegon 5x Premium APO Barlow lens is exactly what you need. With five times focal length extension, it opens up entirely new observing possibilities - using eyepieces you already own.
Apochromatic optics with ED glass
The key advantage of this multiplier is the use of low-dispersion ED glass, which effectively suppresses secondary chromatic aberration. The result is an image with natural colours, free from distracting colour fringing around high-contrast objects. This is especially noticeable when observing planets, the Moon or double stars, where chromatic aberration can significantly reduce image quality. APO-class optics in a Barlow lens at this price point is far from standard - here it is the foundation of the entire optical design.
Telecentric four-element design
The multiplier uses a special telecentric design consisting of four optical elements. This construction ensures even sharpness across the entire field of view, including the edges - a requirement that conventional two-element Barlow lenses struggle to meet. This makes the lens excellent not only for visual observation, but also for astrophotography with a Barlow lens, where demands on sharpness and aberration correction are particularly high.
Greater comfort during long observing sessions
Using a 5x Barlow lens allows you to work with longer focal length eyepieces, which offer a greater eye relief. Observing becomes more comfortable - you can place your eye naturally, without having to press close to the eyepiece. This is a particular advantage for eyeglass wearers and during extended observing sessions.
FMC multi-coatings on all optical surfaces
All optical surfaces are treated with fully multi-coated (FMC) anti-reflection layers, which minimise light loss and improve image contrast. The multiplier is standard-sized for 31.7 mm (1.25″) eyepieces, making it compatible with the vast majority of telescopes and eyepieces on the market.
Who is this Barlow lens for?
The Omegon 5x Premium APO Barlow lens is the choice for those who refuse to compromise on image quality even at high magnifications. The telecentric four-element apochromatic optics with FMC coating represent truly premium accessory - whether you are studying planetary detail or capturing deep-sky objects with a camera sensor.
Technical specifications
| Parameter |
Value |
| Magnification factor |
5x |
| Optical design |
Apochromatic (APO), telecentric, 4-element |
| Glass type |
ED (extra-low dispersion) |
| Coatings |
FMC (Fully Multi-Coated) |
| Barrel diameter |
31.7 mm (1.25″) |
| Suitable for |
Visual observation, astrophotography |
