Galileo TS-1025 10 x 25 mm Compact Binocular Grey Type: Binoculars Specifications: 10X Power 25 mm Objective Lenses Fully Coated Optics Linear Field of View: 298 Feet @ 1000 yards Angular Field of View: 5.5 degree Minimum Focus Distance: 18 Feet Exit Pupil Size: 2.5 mm Eye Relief: approx. 12 mm - 14 mm Interpupillary Distance: 38 mm to 73 mm Relative Brightness Index: 6.25 Twilight Factor: 15.81 Color: Grey Size/Dimensions: 1.00 x 4.00 x 5.00