Vortex Optics Diamondback 8.5x50 Roof Prism Binocular<br />http://www.amazon.com/gp/product/B002M2XUOC?tag=sukses2015-20<br />Fully Multi-Coated - Lenses Increase light transmission with multiple anti-reflective coatings on al <br />Phase Correction - Used on roof prism models onlycoating enhances resolution and contrast <br />Roof Prisms - Valued for greater durability and a more compact size <br />Waterproof - Optics are sealed with O-rings to prevent moisture dust and debris from getting insid <br />Fogproof - Argon gas purging guarantees superior fogproof and waterproof performance
