Omegon 3x achromatic Barlow lens 1.25″
Looking for a way to significantly expand your telescope's capabilities without spending on a full set of eyepieces? The Omegon 3x achromatic Barlow lens is a proven, elegant solution appreciated by beginners and experienced amateur astronomers alike. Simply insert it into your focuser, attach your favourite 1.25″ eyepiece, and you instantly have triple the magnification compared to the original value.
How a Barlow lens works
The principle is straightforward and time-tested. A Barlow lens acts as a negative optical element - it extends the effective focal length of the telescope, multiplying the magnification of the inserted eyepiece. In this model, the multiplier is 3x. So if your telescope with a given eyepiece reaches 60x magnification, adding the Omegon 3x Barlow lens gives you 180x straight away.
The practical benefit is clear: every eyepiece you own effectively becomes two - one in its original form and one delivering triple the magnification. This significantly expands your observing flexibility without the need to invest in additional eyepieces.
Simple setup, universal compatibility
The 1.25″ eyepiece slides into the Barlow body and is secured with a standard side thumbscrew. The entire assembly then fits into your telescope's focuser exactly like a regular eyepiece - no complicated adapters or special modifications are needed.
Compatibility with the 1.25″ focuser is the universal standard in amateur astronomy, which means this Barlow lens will work with virtually any refractor, reflector or catadioptric telescope designed for visual observation.
Achromatic design for clean, high-contrast images
The achromatic construction of the Omegon Barlow lens ensures that increased magnification does not introduce significant chromatic fringing around bright objects. Budget single-element Barlow lenses suffer from chromatic aberration that becomes very noticeable at 3x magnification - colour fringes around the Moon, planets or bright stars can seriously spoil the viewing experience.
The achromatic design combines two glass elements with different optical properties, substantially suppressing this defect so that the resulting image remains sharp and contrasty.
What can you observe with the Omegon 3x Barlow lens?
This Barlow lens is an ideal choice for:
- Detailed observation of the lunar surface
- Planetary atmospheres - Jupiter's cloud bands, Saturn with its rings, Mars at opposition
- Splitting close double stars
- Visual observation as well as astrophotography
It lets you get the most out of your telescope without reaching deeper into your pocket.
Why choose Omegon?
Omegon is a brand well known within the amateur astronomy community across Europe. The brand's philosophy is built on the idea that quality astronomical optics does not have to be prohibitively expensive - and the Omegon 3x achromatic Barlow lens perfectly embodies this approach.
You get carefully crafted achromatic optics, a robust metal barrel with a thumbscrew eyepiece lock, and full compatibility with the worldwide 1.25″ standard. Omegon also offers a wide range of complementary accessories, making it easy to build a complete observing setup from one reliable manufacturer. Investing in this Barlow lens is one of the most cost-effective decisions you can make as an astronomer.
Specifications
| Parameter |
Value |
| Magnification factor |
3x |
| Barrel diameter |
1.25″ |
| Optical design |
Achromatic (2-element) |
| Eyepiece lock |
Side thumbscrew |
| Compatible telescope types |
Refractor, reflector, catadioptric |
| Suitable for |
Visual observation and astrophotography |
