Binorum Planetary Deluxe LE 3mm 55° 1.25″ eyepiece
Professional planetary eyepiece for high-magnification observation
The wide-angle Binorum Planetary Deluxe eyepiece LE 3mm represents the pinnacle in astronomical eyepieces designed for planetary and lunar detail observation. This precisely manufactured eyepiece belongs to a series capable of delivering exceptionally high image sharpness and extraordinary contrast levels compared to standard eyepieces in this class. Thanks to its advanced optical construction with seven optical elements in four groups, it provides clean imaging without distortion at the field edges even with Newtonian telescopes.
Advanced optical design and coating technology
The eyepiece utilizes sophisticated optical construction with all glass surfaces treated with FMC coatings (Full Multi Coating), which minimize light losses and increase image contrast. Lens edges are carefully blackened, eliminating unwanted reflections and light scatter within the eyepiece. This combination of technologies ensures that every photon entering the eyepiece is used with maximum efficiency, resulting in bright and contrasty images with excellent color fidelity.
Comfortable viewing with generous eye relief
One of the most significant features of this eyepiece is the generous 20mm eye relief distance, which enables comfortable observation even for eyeglass wearers. This distance ensures that vision defects will not be an obstacle for planetary observation, and the observer does not need to remove glasses during use. The wide 55° field of view provides sufficient space for tracking objects without the need for frequent telescope movement, which is particularly advantageous when observing fast-moving planets or details on the lunar surface.
Superior performance and optical quality
Compared to eyepieces from other series, the Binorum Planetary Deluxe has demonstrated greater transparency and clearer imaging against the dark sky background without scattered light. When using this eyepiece, there is no need to constantly maintain precise optical axis alignment during observation. Slight variations are not an obstacle because there is no "bean effect" - loss of field of view when shifting gaze to the field edge, which is typical for cheaper eyepieces.
Ideal for high-magnification planetary observation
This 3mm eyepiece is ideal for high magnifications when observing planets, double stars, and lunar details. Due to its construction, it provides excellent results on both refractors and reflectors of various types. The short focal length allows achieving very high magnifications that are necessary for observing fine details on planetary surfaces, such as bands on Jupiter, polar caps on Mars, or Cassini's gap in Saturn's rings.
Technical specifications
| Focal length |
3mm |
| Field of view |
55° |
| Eye relief |
20mm |
| Barrel diameter |
1.25″ |
| Optical construction |
7 elements in 4 groups |
| Coating |
Full Multi Coating (FMC) |
| Compatible telescopes |
All telescopes with 1.25″ focuser |
About Binorum brand
Binorum is a brand created by astronomers for astronomers with a clear focus on quality and functionality. Each product from this brand undergoes thorough testing and quality control to meet the high demands of discerning observers. Binorum offers a wide range of astronomical accessories, from eyepieces through filters to mounting systems. The brand's philosophy lies in providing reliable and affordable solutions that enable astronomers of all levels to achieve the best possible results when observing the night sky. The company's commitment to optical excellence and practical design makes Binorum eyepieces a trusted choice among both amateur and professional astronomers worldwide.
