The new Nitrosport range of 10x50 and 12x50 roof prism binoculars feature a stylish modern open hinge design, making them lightweight and easy to handle. Great for Birdwatching, Hunting and General Observing. The 10x50 model is also a good choice for astronomy.  Both models feature high index silver coated BaK-4 prisms and Fully multi-coated optics. In addition the prisms are Phase-Coated for enhanced light transmission and contrast.  Waterproof to IPX Class 5 (0.5m depth for 3 minutes) and nitrogen-filled for clear, fog free operation. Twist-up eyepieces and suitable for spectacle wearers. Black protective rubber armouring. Integral tripod bush. Supplied with neck strap, eyepiece rainguard and soft case. 
The Helios Nitrosport range is covered by a 5-Year Limited Warranty.