Explore Scientific LER 52° 6.5mm 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.
Comfort, Quality, Value. The Explore Scientific 52° LER Series mid-range focal length eyepieces are excellent flat-field multi-element oculars that can transform your visual astronomy experience. With an apparent field of view of 52 degrees, these eyepieces offer incredible value in a very nice eyepiece. Expect exceptional quality and value versus a comparably priced Plossl.
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.
Specifications:
- 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
- Dust covers and protective bag included
The kit includes:
- 52° Eyepiece
- Dust covers
- Protective bag
Brand | Explore Scientific |
Warranty, years | 0.5 |
Package size (LxWxH), cm | 14.5x11x10 |
Shipping Weight, kg | 0.42 |
Optical scheme | 6 elements in 3 groups |
Eyepiece barrel diameter, in | 1.25” |
Optics material | optical glass |
Lens coating | multi-coated EMD |
Focal length, mm | 6.5 |
Field of view, ° | 52 |
Eye relief, mm | 15.9 |
Suitable for observations while wearing glasses | True |
Field Stop Diameter, mm | 5.9 |
Filter thread | True |
Side edges blackening | True |
Parfocal | True |
Argon-purged | True |
O-ring | True |
Waterproof | True |
Degree of moisture/water protection | immersion to a depth of 1m up to 30 minutes |
Eyecup | foldable, rubber |
Protective caps included | True |