BINOCULAR FUJINON FMTR-SX 7X50 (Rubber coated) The FMT series of binoculars have been a staunch favorite among professionals in the marine and fishing industries. Designed for use in severe environments, these binoculars meet the high demands for functionality, ruggedness and water resistance. The FMT series are high-grade spec models that incorporate field flattener lenses Magnification 7 Object Lens Diameter 50 mm Eye Relief 23 mm Apparent Field of View 7°30′ Apparent Field at 1,000m 131 m Exit Pupil Diameter 7.14 mm Relative Brightness 51 Interpupillary Distance 56 – 74 mm Dimensions (Length × Width) 198 mm × 218 mm (Max. Width) Weight 1.41 kg