20mm Argon purged high performance eyepiece with 68° apparent field
- Waterproof, Argon purged and sealed against dust
- Large and sharp 68° field
- EMD-fully multi-coated with blackened lens edges
- All eyepieces of this series are parfocal
- Dimensions and specifications of all eyepieces can be found in the pdf under the tab "manuals"
Through computer-optimized design, a careful selection of optical glasses, and enhanced multi-layer deposition coatings, the Explore Scientific 68° Series™ eyepieces produce long eye-relief and ensure high image-correction, a flat field, and high contrast across the entire image field. An excellent choice for those who make extended visual studies of detail with subtle variations of brightness, and for those who must wear glasses while observing.
All 68° Series eyepieces are fully EMD (Enhanced Multi-Layer Deposition) coated and edge-blackened to produce superior contrast.
Colour: | black |
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Eyecups: | Rubber eyecups, foldable |
Lenses/Groups [Eyepiece]: | 6/4 |
Material: | Stainless steel |
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