... Great binoculars for nature watching, hunting, or sporting events ,Zoom 10x to 30x and any power in between 10-30X50 ... activities. Wide viewing field. High precision coated optics with variable zoom function, central focusing wheel, soft-grip protective housing and ... : 10-30XObjective lens diameter: 50mmEye relief : 14mmWeight : 830g Features:Zoom 10x to 30x and any power in between Great binoculars ...