Explore Scientific
Explore Scientific 52° Ler Eyepiece 20mm Ar 1.25"
Explore Scientific 52° Ler Eyepiece 20mm Ar 1.25"
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DESCRIPTION
Solidly in the mid-magnification range for most amateur telescopes, the 20mm 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 eyepiecesare 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
SCOPE OF DELIVERY
52° Eyepiece
Dust covers
Protective bag
HIGHLIGHTS
Large eye distance and great image sharpness
Excellent viewing position for people with glasses
Excellent field sharpness even with fast optics
52° apparent field of view
Patented EMD"-coating to maximize contrast
Blackened lens edges to avoid reflexes
Argon-purging prevents internal fogging, the sealing facilitates cleaning
Stainless steel barrel with conical security cutoff
Dust covers and protective bag included
| OPTICAL SPECIFICATIONS | |
|---|---|
| Focal length | 20 mm |
| Apparent field of view | 52 degrees |
| GENERAL TECHNICAL DATA | |
| Eyecups | Rubber eyecups, foldable |
| Interpupilar distance min. | 15 mm |
| DIMENSIONS & WEIGHTS | |
| Total length | 76 mm |
| Net Weight total (incl. accessories) | 175 g |
| Eyepiece Barrel Diameter | 31.7 mm / 1.25 inch |
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Delivered within 4 weeks.
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