Pentax Papilio II Series Binoculars 6.5 x 21mm.This series of Papilio binoculars was designed to be used for a variety of purposes. These binoculars are designed to be used for a variety of purposes. Very versatile and compact, they can be used for museums, art galleries, botanical observations including macro with insects, concerts, sports observation and stargazing. Magnification: 6.5x. Effective aperture of the lens: 21mm. Angle of view: 7.5 degrees. Field of view (at 1000 m): 131 m. Exit pupil: 3,2mm. Ocular clearance: 15mm. Relative brightness: 10,2. Minimum focusing distance: 0,5m. Height (approx.) 114mm. Width (approx.): 110mm. Thickness (approx.): 55mm. Weight (approx.): 290 gr.