Nikon Binoculars Aculon A211 16x50 Porro Prism Type 16x 50 Caliber ACA21116X50

Apparent field of view: 60.8° (*New numerical value based on ISO14132-1:2002) Brightness: 9.6 Eye relief: 12.6mm Pupil diameter: 3.1mm Visibility ahead of 1000m: 73m Close distance (minimum focusing distance): 9.0m (*For emmetropic eyes without adjustment) ACA21116X50 Magnification: 16x Objective lens effective diameter: 25mm