ZEISS Binocular School

Field-of-View Avid binocular users pay attention to this critical performance factor, because field-of-view is the actual width of the sight picture provided by your binoculars at a specific distance. Field-of-view is determined by magnification and the focal lengths of the objective and eyepiece lenses. But one thing is always true: More magnification means less field-of-view. Field-of-view may also be expressed in degrees, which is called the angular field. To convert angular field to the more practical linear field, multiply the angular field by 52.5.

Magnification Objective Lens Diameter Field-of-View Twilight Performance Height Width Weight Exit Pupil Interpupillary Distance Focusing Range Advanced Optics System Prisms Stray Light Coatings Waterproof