The classically designed Dorr Alpina Pro Porro Prism 7x50GA Binoculars have a porro-prism with a BK7 coating which provides phenomenal optical performance. It has a large exit pupil and optical construction guarantees bright and brilliant images even in difficult lighting conditions. The Alpina Pro Porro Prism Binoculars are easy and comfy to use and feature a black and green rubber armour which provides added grip and protection. The large central focussing wheel makes follow focussing extremely fast and easy. Comes with a 3 year warranty.