Vixen Coleman M8×21 Binoculars, Black, 14573-7

Objective lens effective diameter: 21mm Magnification: 8x Prism material: BK7 Coating: Magenta coating Actual field of view: 7.0° Apparent field of view: 52.1° (calculated according to JIS B7157:2003) Visibility at 1000m: 122m Exit pupil diameter: 2.6mm Brightness: 6.8 Eye relief: 10mm