The Helios Sirocco II 10x42 roof prism binoculars are packed with high end features at a remarkable price point, making them outstanding value birdwatching glasses. They feature high-index BaK-4 prisms and fully multi-coated optics for excellent optical performance. Furthermore the prisms are both Silver-Coated and Phase-Coated for enhanced light transmission and contrast. Lightweight and comfortable to hold, with stylishly designed protective rubber armouring.
Phase-coated and silver-coated prisms for increased brightness and image contrast
Fully multi-coated on all glass to air surfaces
Waterproof and nitrogen-filled for clear, fog free operation
Twist-up eyepieces and with generous eye relief suitable for spectacle wearers
Black protective rubber armouring
Integral tripod bush
Supplied with neoprene neck strap, eyepiece rainguard and soft case.
Field of view (at 1,000m range): 105m
Minimum Focus: 2.5m
Eye Relief: 18mm