The Vanguard Spirit XF 8x42 Binoculars offer an 8x magnification and a 42mm objective lens diameter. The Spirit's user-friendly features, such as its centre focus wheel, open-bridge design and rubber shock resistant exterior provide you with a comfortable, yet solid feel in the hands. Fully multi-coated lenses and phase-corrected BaK 4 roof prisms provide you with bright, colourful images with plenty of contrast and edge-to-edge sharpness. The Spirit XF binoculars are perfect for the great outdoors thanks to its 100% waterproof and fogproof design and rubber armour. The Vanguard Spirit XF 8x42 binoculars are great for bird watching and general day-to-day viewing. The Spirit 8x42 weighs 670g and measures 150 x 130 mm (L x W). Prism type BaK4 ; Magnification 8x ; Objective lens diameter 42mm ; Eye Relief 20mm ; Field of view 7.8° or 136m/1000m