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Okular Explore Scientific LER 52° 25 mm 1,25" (AR)

Dostępność: brak towaru
Cena: 349,95 zł 349.95
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Opis

Okular Explore Scientific LER 52° 25 mm 1,25" (AR)
Ogniskowa: 25 mm. Pole widzenia: 52°

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

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