FeaturesL-lens quality - the very finest in precision opticsOptical Image StabilizerRugged waterproof construction10x MagnificationExtremely large 4.2mm exit pupilAnti-fog technology16mm Long Eye ReliefWide 65 degree angle of viewProtecting Canons finest quality L-series lenses with a robust, water-proof housing, the 10x42L IS WP binoculars provide unrivalled clarity, and stabilized field scoping performance.   Professional lens quality...for binoculars. Professional power The 10x42L IS WP binoculars are the first from Canon to be engraved with the hallowed red L-series ring: a mark until now reserved for Canons finest professional photographic lenses; the pinnacle of Canons 60 year heritage in precision optics design and manufacture. Raising optical performance standards, the binoculars feature 2 Ultra-low Dispersion glass (UD) lens elements on each side. Developed by Canon, these elements are effective in eliminating chromatic aberration - the rainbow-like distortion that affects lesser quality binoculars. The result is super bright, high contrast, 10x magnification viewing clarity. Stay steady To suppress vibrations caused by viewing hand-held, on moving vehicles or boats, the 10x42L IS WP binoculars include Canons Vari-Angle Prism (VAP) Image Stabilizer (IS). Tiny gyros detect the slightest movements, while a microprocessor controls a special prism to correct the refraction angle of incoming light. All-weather Designed to survive the toughest outdoor conditions, the 10x42L IS WP binoculars are fully waterproof. The design incorporates a distinctive easy-grip for wet conditions, and a robust rubber coating to withstand all your adventures. Anti-fog To prevent fogging on internal lens elements caused by the ingress of moisture, all exterior surfaces are treated with a special metallic coating. This works in concert with special O-rings and use of waterproof adhesives on all external contact points to prevent water molecules permeating the outside casing. Precision optics All the lens element surfaces are treated with Canons Super Spectra coatings. These ensure vivid high contrast images with accurate colour balance by eliminating unwanted internal reflections that cause ghosting (secondary images) and flare (low contrast, washed out images). The exceptionally large 4.2mm exit pupil allows a bright field of view in low light conditions. Comfortable Every aspect of the 10x42L IS WP binoculars is designed around viewing comfort. A wide 65 degree angle of view gets plenty of horizon into view, while a 16mm Long Eye Relief minimises vignetting (or the tunnel effect) that can affect prescription glasses wearers. A correction lock prevents unintentional dioptric correction errors, and the extending eye-cups can be rotated for customised fitting.