Binocular Nikon Action 8x40 CF

Key Features : Aspherical eyepiece lens eliminates image distortion Multilayer-coated lenses and large objective diameter for optimal clarity of image Rubber armouring for shock resistance and a firm, comfortable grip Sophisticated design Wide strap Can be fixed to a tripod using optional tripod adaptor ( Action 16x50CF includes tripod adaptor) For : [ Spectator sports] [ Mountaineering, camping, hiking] [ Birdwatching, nature watching] Specification : Magnification ( x) : 8 Objective diameter ( mm) : 40 Angular field of view ( Real/ degree) : 8.2 Angular field of view ( Apparent/ degree) : 59.7 Field of view at 1, 000m ( m) : 143 Exit pupil ( mm) : 5.0 Relative brightness : 25.0 Eye relief ( mm) : 11.9 Close focusing distance ( m) : 5.0 Weight ( g) : 760 Length ( mm) : 143 Width ( mm) : 182 Interpupillary distance adjustment ( mm) : 56-72