Explore Scientific LER 6.5mm 52° 1.25″ eyepiece
Looking for an eyepiece that offers exceptional sharpness, high contrast and long-term reliability - without an astronomical price tag? The Explore Scientific LER 6.5mm eyepiece from the 52° series is exactly what you need. This versatile flat-field eyepiece was designed for observers who refuse to compromise on image quality, whether they point their telescope at planets, the Moon or double stars.
Optics and image quality
The eyepiece features a corrected 52° field of view with a 6.5mm focal length, making it a significantly better choice than classic Plössl-type eyepieces. The flat-field LER (Long Eye Relief) design delivers outstanding sharpness all the way to the edge of the field of view - something you will especially appreciate during detailed observation of planetary surfaces and lunar relief.
The patented EMD (Enhanced Multi-Layer Deposition) anti-reflection coating on all optical surfaces effectively suppresses unwanted reflections and stray light, which noticeably increases the contrast of the resulting image. This makes a real difference when you are studying fine details on Saturn or Jupiter.
Waterproof construction and long-term durability
The eyepiece is fully waterproof and the interior is argon-purged. This combination effectively prevents internal fogging, dust accumulation, fungal growth on optical surfaces and seeping of cleaning fluids - problems that owners of cheaper eyepieces will sooner or later encounter. You can be confident that this eyepiece will perform exactly the same in one year as it does in ten, whether you are observing on cold, humid winter nights or in otherwise demanding conditions.
Universal compatibility
The 1.25″ barrel diameter ensures compatibility with the vast majority of astronomical telescopes on the market. The Explore Scientific 52° LER series is an ideal choice for planetary observation as well as for beginners looking for their first quality eyepiece with a view to long-term use.
About Explore Scientific
Explore Scientific is a brand with a worldwide reputation in the field of astronomical optics, popular among both newcomers and experienced amateur astronomers. The brand's philosophy is to bring the technologies and materials of professional optics into affordable products for the amateur market - without unnecessary compromises in build quality or optical performance. The 52° LER series is a clear testament to that: you get a thoughtfully engineered eyepiece with proven optics and guaranteed durability, ready to serve you faithfully on every night under the stars.
Key specifications
| Parameter |
Value |
| Focal length |
6.5mm |
| Apparent field of view |
52° |
| Barrel diameter |
1.25″ |
| Eye relief type |
Long Eye Relief (LER) |
| Anti-reflection coating |
EMD (Enhanced Multi-Layer Deposition) |
| Waterproof |
Yes |
| Internal fill gas |
Argon |
| Field type |
Flat-field |
