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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"
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Bresser EXPLORE SCIENTIFIC 68 Ar Eyepiece 20mm (1,25)
Produkta kods: 46742
SKU: 46742
Ean: 4007922200170
Manufacturer: Bresser
Condition: New product
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Improvements in Eyepiece Manufacture
With the introduction of the 68 Series, we are pleased to make two important improvements in eyepiece manufacture:
- 15 layer Enhanced Multi-layer Deposition (EMD) coatings on all glass-to-air surfaces to gain maximum contrast.
- Waterproofing the eyepiece with the use of Argon gas purging instead of standard Nitrogen gas. Although Nitrogen is a fine choice that will last for many years, Argon is a larger molecule that maintains its protective properties over a wider range of temperatures and is even more resistant to diffusion, thereby further extending the protective waterproof environment of the eyepiece body.
Design and Performance
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
- High image-correction
- A flat field
- High contrast across the entire image field
Coating and Contrast
All 68 Series eyepieces are fully EMD (Enhanced Multi-Layer Deposition) coated and edge-blackened to produce superior contrast.
| Type of Product | Telescope eyepiece |
