"You'll be ready for nearly every viewing situation with these versatile binoculars from Pentax. Lightweight and compact, this pair offers a wide magnification range from 8X to 16X.Centralized focusing system uses zoom, focus, and diopter adjusting rings placed on the center axis for ease of use. Field of view (1000 yds.) 156'. Eye relief 14 mm. Exit pupil 2.6x1.3 mm. 4.5x4.3"". 11.6 oz. Closeouts. China."