Leupold Cascsde Center Focus binoculars phase coated roof prisms to give you the sharpness, contrast and color fidelity binocular users demand. Features outstanding low-light performance, long eye-relief and twist-up caps, slim, ergonomic in-line design, close focus, tough and waterproof, Limited Lifetime Warranty.Field of view in feet @ 1000yards: 341', Weight: 22.9 oz., Length: 5.5", Eye Relief: 18mm.