DeltaOptical 2x Barlow lens 1.25″
Want to get much more out of your telescope and existing eyepieces without investing in a whole new eyepiece set? The DeltaOptical 2x Barlow lens is an elegant and proven solution. Simply insert it between the telescope and your eyepiece, double the effective focal length, and instantly gain twice the magnification - your eyepiece collection is practically doubled without breaking the bank.
Achromatic optics with FMC coating
At the heart of this Barlow lens is an achromatic 2x optical multiplier that effectively suppresses chromatic aberration - the unwanted color fringing around bright objects that is the bane of cheaper single-element lenses. Thanks to the achromatic design, the image remains sharp, contrasty, and true to color, whether you are observing planets, the Moon, or bright star clusters.
The optical surfaces are treated with a fully multi-coated (FMC) anti-reflection coating, which minimizes unwanted reflections and light scatter, maximizes light transmission, and preserves the natural brightness of the observed image. For technically demanding users, this is a key parameter - especially when observing fainter objects or during astrophotography.
Universal fit and compact dimensions
The standard 1.25″ barrel diameter ensures compatibility with the vast majority of telescopes and eyepieces on the market - from refractors and reflectors to catadioptric systems. Simply insert the Barlow lens into the telescope focuser, slide in your favorite eyepiece, and you are ready to observe straight away.
The compact dimensions and weight of only 72 g mean the lens will not burden even lighter monoculars or portable travel sets. It fits easily into any accessory bag.
Who is this Barlow lens for?
Thanks to the combination of quality achromatic optics, FMC anti-reflection coating, and the universal 1.25″ diameter, this Barlow lens is an excellent choice for:
- Beginner astronomers who want to easily expand the capabilities of their first telescope
- Experienced observers looking for a reliable and affordable backup for their equipment
- Astrophotographers who need stable and aberration-free image amplification
About the DeltaOptical brand
DeltaOptical is an established European brand with a long tradition in manufacturing optical instruments for astronomers, nature observers, and professionals. DeltaOptical products are designed with an emphasis on practicality, durability, and optical quality appropriate to their price category. Barlow lenses from this brand have earned the trust of thousands of users thanks to their consistent build quality and reliable optical performance. If you are looking for a quality 1.25″ Barlow lens at a reasonable price, DeltaOptical is a choice you will not regret.
Key specifications
| Parameter |
Value |
| Magnification factor |
2x |
| Barrel diameter |
1.25″ |
| Optical design |
Achromatic |
| Lens coating |
FMC (fully multi-coated) |
| Weight |
72 g |
| Compatibility |
Refractors, reflectors, catadioptric telescopes |
