sakura night vision 30x60 zoom optical military binoculars telescope (126m-1000m ) telescopio day and night 2018 t190627

parameters:.model: 30 x 60.structure: binoculars.function type: telescope.instrument magnification: 30 times.objective diameter: 60mm.objective surface: multilayer red film.exit pupil distance: 10mm.exit pupil diameter: 2.5mm.field of view: 126m / 1000m.resolution ratio: 7.2 degree.smallest focus distance: 8m.usage:.set the interpupillary distance by grasping the lens-barrels and banding the body of your binocular until you can see one circle of view..close your right eye and focus left side by