Explore Scientific LER 52° 25mm 1.25'' (AR) Eyepiece
Solidly in the mid-magnification range for most amateur telescopes, the 25mm is a true workhorse for visual observers. If you love deep sky observing, eyepieces in this focal length range not only give healthy increases in magnification, but the contrast enhancement of giving a darker background sky can make all the difference of how galaxies and nebulae appear under suburban skies.
The Explore Scientific 52° LER mid-range focal length eyepiece is excellent flat-field multi-element ocular that can transform your visual astronomy experience. With an apparent field of view of 52 degrees, this eyepiece offer incredible value in a very nice eyepiece.
These eyepieces are the choice for observers wearing glasses – with excellent performance and durability. The rubber inlet and the foldable eyecups make handling and using in the field easy. The patented EMD-coating produces high contrast images and prevents reflexes and ghosting. The argon purging effectively prevents internal fogging, and you don´t have to deal with dirt, fungus or cleansing fluids getting between the lenses. The eyepieces are sealed – this makes sure you will be able to enjoy these eyepieces for many years to come.
Features:
- Large eye distance, large field and great image sharpness
- Excellent viewing position for people with glasses
- Excellent field sharpness even with fast optics
- 52° apparent field of view
- Argon-purging prevents internal fogging, the sealing facilitates cleaning
- Patented EMD-coating to maximize contrast
- Blackened lens edges to avoid reflexes
- All eyepieces of this series are parfocal
- Stainless steel barrel with conical security cutoff
The kit includes:
- 52° eyepiece
- Dust covers
- Protective bag
| Specifications | |
|---|---|
| Type | parfocal |
| Optics material | optical glass |
| Optics coating | multicoated EMD (Enhanced Multilayer Deposition) |
| Optical design | 4 elements in 2 groups |
| Apparent field of view, ° | 52 |
| Focal length, mm | 25 |
| Eyedistance, mm | 16.4 |
| Field stop diameter, mm | 22.7 |
| Barrel diameter, in | 1.25 |
| Eyepiece barrel diameter, mm | 31.7 |
| Waterproof | yes, sealing ring, additional argon purge |
| Additionally | rubber foldable eyecup, filter thread |
| Marka | Explore Scientific |
| Garanti, yıl | 2 |
| EAN | 4007922050973 |
| Paket boyutu (UxGxY), cm | 14.5x11x10 |
| Nakliye Ağırlığı, kg | 0.35 |
| Suya dayanıklı | yes |
| Göz körüğü | kauçuk, katlanabilir |
| Neme/suya karşı koruma derecesi | en fazla 30 dakika 1 m'ye kadar derine daldırma |
| Koruyucu kapaklar dahildir | yes |
| Odak uzaklığı, mm | 25 |
| Gözlük takarken gözlem yapmak için uygundur | yes |
| Optik şema | 2 grupta 4 eleman |
| Göz merceği borusu çapı, inç | 1,25" |
| Optik malzemesi | optik cam |
| Mercek kaplaması | çoklu kaplamalı EMD |
| Görüş alanı, ° | 52 |
| Göz uzaklığı, mm | 16.4 |
| Alan Durdurma Çapı, mm | 22.7 |
| Filtre yivi | yes |
| Yan kenarları karartma | yes |
| Parfokal | yes |
| Argonla temizlenmiş | yes |
| O-halka | yes |