Galileo G-1250 Galileo G-1250 12 x 50 mm Astronomical Binocular and Case Type: Binoculars Accessory: Neck Strap and case Specifications: 12X Power 50 mm Objective Lenses Fully Coated Optics Linear Field of View: 275 Feet @ 1000 yards Angular Field of View: 5.2 degree Minimum Focus Distance: 25 Feet Exit Pupil Size: 4.2 mm Eye Relief: approx. 8 mm - 10 mm Interpupillary Distance: 59 mm - 75 mm Relative Brightness Index: 17.36 Twilight Factor: 24.49 Color: Black Size/Dimensions: 2.25 x 7.00 x 7.00