The Minox BN 7x50 II binoculars use the traditional Porro prism design with individual focus, resulting in focus from 39' to infinity without further adjustment - just pick them up and look. A thermoplastic body with a molded grip helps keep the weight down to 36 ounces. Fold-down rubber eyecups make for comfortable viewing whether wearing glasses or not. The 24mm eye relief is quite generous and ensures that even eyeglass wearers will see the full field of view of 393' at 1000 yds.