TeleVue 2x Barlow lens 1.25″
If you are looking for a Barlow lens where you do not have to make any compromises, you have come to the right place. TeleVue is a name that needs no special introduction among astronomers - an American company with decades of experience in designing premium astronomical optics. Their 2x Barlow lens for 1.25″ barrel size is the best proof of that: a compact, precisely crafted accessory that significantly expands the capabilities of your telescope without sacrificing image quality in any way.
How does the TeleVue 2x Barlow lens work?
The basic function of a Barlow lens is to effectively double the focal length of your telescope, giving you twice the magnification with any eyepiece. With cheaper Barlow lenses, however, this often brings unwanted side effects - chromatic aberrations, reduced contrast or loss of sharpness at the edges of the field of view. The TeleVue 2x addresses this problem with a thoroughly engineered optical design: the lens system is built to preserve high contrast, colour saturation and sharpness from the centre all the way to the edges. You will notice the difference the moment you first look at a planet or the Moon.
Parfocal design - change eyepieces without refocusing
One feature that anyone working with multiple eyepieces will appreciate is the preservation of parfocal position. Because the TeleVue Barlow 2x maintains parfocal alignment, you do not need to refocus your telescope after swapping eyepieces - or only minimally. This is a significant advantage during visual observation when switching between different magnifications, but you will appreciate it even more during planetary astrophotography, where every movement of the focuser can mean losing a precisely framed shot.
Optimised for planetary imaging
When photographing Jupiter, Saturn or Mars, the key is to work at high magnifications while maintaining the best possible optical quality. The TeleVue 2x Barlow lens is engineered to minimise the introduction of optical aberrations into the final image, even when used with planetary cameras with small sensors. The focal point of the Barlow lens sits far enough beyond the body of the unit that it is compatible with standard camera noses and eyepiece adapters for the 1.25″ barrel size.
Key specifications
| Parameter |
Value |
| Magnification factor |
2x |
| Barrel diameter |
1.25″ |
| Parfocal design |
Yes |
| Compatible use |
Visual observation, astrophotography |
| Brand |
TeleVue (USA) |
Why choose TeleVue?
TeleVue belongs among the absolute world leaders in astronomical optics. Every product from their workshop undergoes strict quality control and is designed with the real needs of astronomers in mind - whether for visual observers or experienced astrophotographers. Investing in a TeleVue Barlow lens is an investment in optics that will last you for decades and serve as a reliable companion at the telescope on every night under the stars. Once you try TeleVue, it is difficult to be satisfied with anything else.
Who is this Barlow lens suitable for?
- Visual observers who want to increase magnification without losing image quality
- Planetary astrophotographers working with cameras and small sensors
- Anyone who uses multiple eyepieces and values parfocal convenience
- Astronomers looking for a long-term, reliable optical accessory
