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Explore Scientific 52 LER Eyepiece 20mm Ar
[EXS_0219520]

Prijs: 69,00 EUR

 
Product Details

Explore Scientific 52° LER Eyepiece 20mm Ar

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 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

SCOPE OF DELIVERY
  • 52° Eyepiece
  • Dust covers
  • Protective bag
Product Specificaties

OPTICAL SPECIFICATIONS
Focal length 20 mm
Apparent field of view 52 degrees
GENERAL TECHNICAL DATA
Eyecups Rubber eyecups, foldable
Interpupilar distance min. 15 mm
Ext. warranty after online registration* 10 Years
DIMENSIONS & WEIGHTS
Total length 76 mm
Net weight (without access.) 175 g
Eyepiece Barrel Diameter 31.7 mm
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