Bresser 5x Barlow lens 1.25″
Looking for a way to significantly increase the magnification of your telescope without buying new eyepieces? The Bresser 5x Barlow lens for 1.25″ barrel diameter is an elegant and affordable solution that opens up new possibilities for observing planets, the Moon and double stars. Simply insert it between the telescope and the eyepiece to instantly achieve five times the original magnification.
Optical design
The lens is built on a 3-element optical system, which provides better correction of aberrations than simple 2-element designs. All optical surfaces are equipped with fully multi-coated FMC anti-reflection coatings, which minimise stray reflections, increase light transmission and make the resulting image appear more contrasty and sharp. The inner walls of the barrel are also finished with a matte black coating, which effectively suppresses scattered light and prevents unwanted reflections when observing bright objects.
Suitable for visual observation and astrophotography
The Bresser 5x Barlow lens is suitable not only for visual observation but also for astrophotography - the mounting system uses a flat circumferential locking mechanism that reliably secures and centres both a standard 31.7 mm (1.25″) eyepiece and a planetary camera or webcam. This eliminates any risk of tilting or shifting of the optical accessory, which is especially critical when shooting with long exposures or working with heavier cameras.
Compact dimensions and low weight
| Parameter |
Value |
| Magnification factor |
5x |
| Barrel diameter |
1.25″ (31.7 mm) |
| Optical system |
3-element, FMC coated |
| Dimensions |
41 x 90 mm |
| Weight |
110 g |
The compact dimensions of 41 x 90 mm and weight of just 110 g ensure that the lens does not put strain on the focuser or create an unbalanced moment on the mount.
Who is this Barlow lens for?
The 5x Barlow lens will be appreciated especially by:
- Observers of planets and the Moon who want to get the maximum magnification from their telescope during moments when atmospheric seeing allows
- Those experimenting with planetary photography using CMOS cameras who need to achieve a suitable focal ratio for sampling on the sensor
- Anyone looking for a universal accessory compatible with the vast majority of telescopes and focusers on the market thanks to the standard 1.25″ barrel diameter
A worthwhile investment for any telescope setup
The Bresser 5x magnification Barlow lens represents a sound investment for anyone who wants to expand the capabilities of their observation setup without compromising image quality. Solid FMC optics, a well-thought-out mechanical design and universal compatibility make it a reliable companion at the telescope.
