Using an aspherical optics, the ST series are extremely robust, handle well and are also remarkably lightweight. Thanks to their ergonomically optimised bodies these binoculars provide a secure grip. The Luger DIM full coating guarantees a bright, high contrast image. ST Series (ST 12x50) 12 x Magnification Objective Lens Diameter: 50mm Exit Pupil: 4.17mm Weight: 800g Near Focus: 7m Field Of View (m/1000m): 96m Twilight Factor: 24.49 Dimensions (mm): 180x185x62