Omegon 3x Premium APO Barlow lens 1.25″
Looking for a way to get more out of your existing eyepieces without investing in a whole new set? The Omegon 3x Premium APO Barlow lens is an optically refined solution for astronomers who want to triple their magnification while keeping the image sharp, contrasty, and true to colour. Its apochromatic design and fully multi-coated (FMC) optics place it firmly in the higher tier of telescope accessories - where image quality genuinely matters.
Apochromatic correction - why it makes a difference
Standard achromatic Barlow lenses suffer from chromatic aberration at higher magnifications - a subtle colour fringing around bright objects that blurs fine detail on planets and the Moon. The Omegon Premium APO uses an apochromatically corrected optical system that suppresses chromatic aberration to a minimum. The result is an image with natural colours, high contrast, and crisp edges even at full 3x magnification. For planetary observers and lunar astronomy enthusiasts, this is a difference you will notice immediately.
FMC coatings and precision mechanics
Every optical surface is treated with a fully multi-coated (FMC) anti-reflection coating that minimises reflections and light scatter. This delivers higher light transmission, a brighter image, and noticeably better visibility of fine detail when observing fainter objects.
The body is precision-machined to the standard 1.25″ diameter, fitting the vast majority of telescope focusers. The interior walls are matte-finished and fitted with a light baffle that eliminates stray light and ghost images.
Triple your eyepiece range without buying new lenses
A 3x Barlow effectively multiplies the magnification of every eyepiece in your collection. For example:
| Eyepiece focal length |
Equivalent focal length with 3x Barlow |
| 40 mm |
~13 mm |
| 20 mm |
~6.7 mm |
| 10 mm |
~3.3 mm |
This means three additional effective focal lengths at no extra cost beyond the Barlow itself. The lens is ideal for detailed observation of planets, double stars, and the lunar surface, where high magnification is desirable. For best results, it is recommended to combine it with quality eyepieces of medium to short focal length.
About Omegon
Omegon is a German brand with a long-standing tradition in astronomical optics and accessories. Every product in the Premium range is developed with a focus on optical quality, durability, and practical usability at the eyepiece - not just figures on a specification sheet. The Omegon 3x Premium APO Barlow lens offers an excellent balance of performance and value for astronomers who refuse to compromise on image quality but want a sensibly priced way to expand their accessory kit.
