Peer through the eyes of Steiner Commander 7x50mm Marine Binoculars and see why they're the unrivaled choice of fishing guides, ship captains and blue water sailors across the globe. Military-grade porro prisms combine with index-matched glass and Sports-Auto Focus system to deliver razor-sharp images from 20 yards to infinity without the need to fumble with a focus ring. Nano-Protection coating creates a lens surface that cleans easily and repels dirt, dust and fingerprints. Generous 20.2mm eye relief with extended eye cups ensure comfortable viewing, even on rough water. Plus, super-tough Makrolon rubber-armored housing is capable of withstanding impact up to 11Gs.