RSPB HDX 8x42 Binoculars

The RSPB HDX 8x42 Binoculars (product ID 49568993313075) deliver an 8x magnification with a 42mm objective lens. That pairing gives you a 131m field of view at 1000m and a 5.25mm exit pupil solid performance for tracking birds in flight or scanning woodland edges. At 680g they are one of the lightest 42mm roof prism binoculars available and the compact body with a smaller bridge lets you hold them comfortably in one hand.

The optics use ED glass in the objective lens to reduce chromatic aberration and keep colours accurate. Phase coated roof prisms with SHR (super high reflective) coatings deliver high clarity and contrast across a wide range of lighting conditions. Fully multicoated lenses maximise light transmission for brighter images at dawn and dusk.

The body is rubber armoured for shock resistance and nitrogen filled for complete fogproof performance. Fully waterproof construction means rain is not a problem. Internal focusing with a close focus of 2 - 2.5m handles nearby subjects well. Eye relief of 17.2mm suits glasses wearers.

A 10-year manufacturer warranty backs the build quality. Birdwatching is the obvious fit but the wide field of view and lightweight body make these a strong all-round choice for wildlife observation.

The 8x42 format means 8x magnification with a 42mm objective lens producing a 5.25mm exit pupil good for low light use. The roof prism design keeps the body compact. Phase coatings correct light wave interference inside the prism and SHR coatings reflect more light through it. ED glass in the objective reduces chromatic aberration. Fully multicoated lenses on every air-to-glass surface cut reflection losses. The result is a bright sharp image with accurate colour across a 131m field of view at 1000m.

The body is a compact roof prism chassis with shock-resistant rubber armouring. The objective lens uses ED (extra-low dispersion) glass. Roof prisms carry phase coatings and SHR super high reflective coatings. The sealed body is nitrogen filled to keep moisture and dust out of the optical path.

Clean lenses with a blower brush first then a microfibre cloth and optical cleaning fluid only. Store in the carry case when not in use. Keep the body dry and check the eyecups and hinge regularly. The 10-year warranty requires normal careful use avoid drops and never attempt internal servicing yourself.