Explore Scientific LER Ar 32mm 62° 2″ eyepiece
Looking for an eyepiece that handles demanding observing conditions, offers comfortable use for eyeglass wearers, and still maintains excellent optical performance? The Explore Scientific LER 32mm 62° from the 62° LER series is exactly the choice that will satisfy both beginners and experienced astronomers alike. The combination of a wide apparent field of view, long eye relief and premium optical coatings makes this eyepiece a reliable companion for every observing night.
Wide 62° field with clean edges
The 62° apparent field of view represents a pleasant compromise between classic and ultra-wide eyepieces - the image is spacious, yet free from the typical edge aberrations that plague cheaper wide-angle designs. This eyepiece handles fast optics (short focal ratio telescopes) particularly well, where many competing eyepieces suffer from coma or edge distortion. The 32mm focal length makes it an outstanding survey eyepiece - ideal for open star clusters, large nebulae or full-disc views of the Moon.
EMD multi-layer coatings for maximum contrast
The lens surfaces feature EMD (Enhanced Multi-layer Deposition) coatings - a patented multi-layer anti-reflection treatment that maximises light transmission while significantly increasing image contrast. Lens edges are carefully blackened to eliminate unwanted internal reflections and stray light that would otherwise reduce sharpness and contrast - a detail that technically minded observers will certainly appreciate.
Long eye relief - comfortable for eyeglass wearers
The LER (Long Eye Relief) designation is not just a marketing term - the 22mm eye relief is a genuinely above-average figure that allows the full field of view to be seen comfortably through spectacle lenses. There is no need to remove glasses or press uncomfortably close to the eyepiece. The folding rubber eyecup is adjustable, so every observer can easily find the optimal position regardless of whether they wear glasses or not. The result is noticeably less fatiguing observing sessions, free from awkward neck or shoulder positions.
Argon purging and weatherproof sealing
Argon purging and waterproof sealing are features you will particularly appreciate when observing in challenging conditions - humid summer nights, mountain locations or during rapid temperature changes. The argon fill effectively prevents internal fogging of the optics, inhibits dust accumulation and prevents mould growth inside the eyepiece. The stainless steel barrel with a conical safety groove ensures a firm and secure hold in the telescope focuser without any risk of slipping.
About Explore Scientific
Explore Scientific is an American brand with a long tradition of manufacturing premium astronomical optics, combining innovative technologies with a focus on practicality and durability. The 62° LER series eyepieces are designed to withstand years of intensive use both in the field and at the observatory. Argon protection, EMD coatings and precision mechanical construction are not just advertising slogans - they are concrete technical solutions that make a real difference with every look through the eyepiece.
Technical specifications
| Parameter |
Value |
| Focal length |
32mm |
| Apparent field of view |
62° |
| Eye relief |
22mm |
| Barrel diameter |
2″ |
| Lens coatings |
EMD (Enhanced Multi-layer Deposition) |
| Internal fill |
Argon (Ar) |
| Eyecup |
Folding rubber (adjustable) |
| Barrel |
Stainless steel with conical safety groove |
| Sealing |
Waterproof |
Who is this eyepiece for?
- Observers who wear glasses and need comfortable, full-field viewing
- Anyone looking for a reliable 2″ wide-field survey eyepiece for star clusters, nebulae and the Moon
- Observers using fast telescopes who need an eyepiece that handles edge performance well
- Those who observe in humid or variable weather conditions where argon purging provides real protection
- Beginners seeking a high-quality first wide-field eyepiece as well as experienced astronomers upgrading their kit
If you are looking for a dependable survey eyepiece in the 2″ format that performs equally well at an observatory and on a dark-sky field trip, the LER Ar 32mm 62° is a choice you will not regret.
