Viking Osprey ED 10x42 Binoculars

The Viking Osprey ED 10x42 binoculars (product 47032226513203) deliver 10x magnification through 42mm objective lenses. That pairing gives you a 4.2mm exit pupil solid for daytime wildlife watching with a 6.6° field of view. ED extra low dispersion glass in the objective lenses produces brighter, clearer images than standard glass with noticeably less colour fringing at the edges.

The prisms are BAK 4 with dielectric coatings and phase correction. Dielectric prism coatings push light transmission well above standard silver coatings and the phase correction keeps fine detail sharp across the full field. All optics are fully multicoated to maximise brightness and contrast in real-world conditions.

The body weighs 695g and measures 145x130mm. It features robust barrel armouring and a metal focus wheel. Fully waterproof to 1m depth and nitrogen filled to prevent internal fogging these handle British weather without issue. The build quality is backed by a 10-year manufacturer warranty.

Included are a padded carry case, neck strap and lens covers. The 10-year warranty and Viking's well-regarded repair service make this a long-term investment for serious wildlife watchers. ED glass, dielectric prisms and a solid build at this price point is genuinely hard to beat.

The Osprey ED uses 10x magnification paired with 42mm objective lenses giving a 4.2mm exit pupil enough for bright daytime images and usable at dusk. ED glass in the objectives reduces chromatic aberration so colours stay true and edges stay sharp. BAK 4 prisms with dielectric coatings transmit more light than standard silver coatings. Phase correction keeps fine detail accurate across the full 6.6° field of view. Fully multicoated surfaces on all glass elements reduce reflection loss at every air-to-glass interface.

The Osprey ED uses ED extra low dispersion glass objective elements for the optical core. The prisms are BAK 4 glass with dielectric and phase correction coatings. The body features robust barrel armouring over the chassis with a metal focus wheel. The sealed construction is nitrogen filled to keep internal optics fog-free.

Use a soft brush or blower before wiping lenses with a clean microfibre cloth. Store in the padded case when not in use and keep the strap attached to avoid drops. Store in a dry place. Check the hinge tension and eyecups regularly. The 10-year warranty requires normal careful use avoid impact and never use solvents on the lenses.