The Oberwerk 15x70 ED Ultra FK Binoculars (Oberwerk, SKU: 15x70ED-ULTRA) have long been regarded as a benchmark among premium 70 mm binoculars. The updated 2026 version introduces significant optical and ergonomic improvements, further enhancing image sharpness, viewing comfort and overall performance.

Key features

• new eyepiece system with integrated field flatteners, delivering excellent edge-to-edge sharpness
• wide 4.9° true field of view and an exceptionally large 73.5° apparent field of view
• 20 mm eye relief, suitable for observers wearing glasses
• ED FK-61 low-dispersion objectives significantly reducing chromatic aberration
• 4.67 mm exit pupil providing comfortable viewing and good low-light performance

Construction and handling

• precision individual focus for each eyepiece
• fully multi-coated broadband optics
• waterproof and nitrogen-filled construction
• extremely robust mechanical design built for long-term durability
• updated grey rubber armor combining durability with refined appearance
• soft neoprene eyecups for enhanced comfort during extended observing sessions

Package contents

• lightweight hard carrying case
• Oberwerk Heavy-Duty L-Adapter for tripod mounting
• neck strap

Technical specifications

• magnification: 15x
• objective diameter: 70 mm
• true field of view: 4.9°
• apparent field of view: 73.5°
• eye relief: 20 mm
• exit pupil: 4.67 mm
• interpupillary distance: 57–75 mm
• minimum focus distance: 10 m
• dimensions: 28 × 22 × 10 cm
• weight: 2.5 kg