Oberwerk ED Ultra 20x70 Overview
Built for comfortable both-eyes-open astronomy or very long-range terrestrial observation, the 20x70 ED Ultra Binoculars from Oberwerk feature powerful magnification and large objective lenses. Included is an adapter for a tripod with a 1/4" -20 stud, which will be necessary to support this oversize optic. The extra-low dispersion objective lenses have antireflection broadband multicoating on all air-to-glass surfaces for crisp, high-contrast images with minimal chromatic aberration. The eyepieces can be individually focused for precise adjustment.
The 20x70 ED Ultra s lightweight magnesium alloy housing is nitrogen-filled for fog and waterproof performance. The chassis is wrapped in gray rubber armoring for slip and shock resistance as well as a comfortable grip.
Optical Performance
- Magnification: 20x
- Objective lenses: 70mm diameter
- Extra-low dispersion objective lenses minimize chromatic aberration
- Full antireflective multicoating on all air-to-glass surfaces reduces glare and improves contrast
- Porro prism design, BAK4 prism glass
- Individually adjusting eyepieces for precision focus
Construction Details
- Lightweight magnesium alloy body
- Slip-resistant rubber armoring
- Nitrogen-filled for fog and waterproof performance
- L-shaped adapter for tripods with 1/4" -20 studs
EAN: 854951002626
Oberwerk ED Ultra 20x70 Specs
Key Specs
| Prism Type | Porro (BAK4) |
| Magnification | 20x |
| Objective Lens Diameter | 70 mm |
| Angle of View | 3.5 (Actual) |
| Field of View | 183.75` @ 1000 yd / 61.01 m @ 1000 m |
| Exit Pupil Diameter | 3.5 mm |
In the Box
- Oberwerk 20x70 ED Ultra Binoculars
- 2 x Heavy-Duty L Adapter
- Neck Strap
- Aluminum Frame Case
- 2-Year Manufacturer Warranty
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