Totally redesigned with a high performance optics upgrade and a slimmer lighter tougher body design and its easy to see why theyre called ultra hd for the ultimate in colour fidelity brightness and light transmission theyre equipped with super premium ed prime glass the razor sharp optics are fully multi coated and feature a new ultra wide band coating that optimises brightness and contrast new rainguard hd also boosts light transmission while ensuring foul weather will never cost you