Vortex Optics Diamondback 8x28 Roof Prism Binocular<br />http://www.amazon.com/gp/product/B002SCWWH2?tag=sukses2015-20<br />Phase corrected prisms increasing light transmission by 7 deliver sharp greatly contrasted images <br />BaK-4 prisms provide sharp images from one edge of the broad viewing field to the other <br />Fully multi-coated optics increase light transmission for higher image quality in all lighting conditions - enhanced for 2009 <br />Complete waterproof protection keeps dust and water out of the optical system with tight O-ring seals <br />Complete fogproofing of internal lenses with argon-purged optics presents clear views in spite of sudden temperature changes
