OB20X70EDU

OB20X70EDU

Oberwerk

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: 20xObjective lenses: 70mm diameterExtra-low dispersion objective lenses minimize chromatic aberrationFull antireflective multicoating on all air-to-glass surfaces reduces glare and improves contrastPorro prism design, BAK4 prism glassIndividually adjusting eyepieces for precision focusConstruction Details Lightweight magnesium alloy bodySlip-resistant rubber armoringNitrogen-filled for fog and waterproof performanceL-shaped adapter for tripods with 1/4"-20 studs