Pentax Papilio III 8.5x21 WR Binoculars with HD Coated 50cm Close Focus (Black)The Papilio III WR binoculars are designed for close range and long distance viewing. With its convergence correction system, weather resistant build, and high quality optical performance, it provides comfortable and reliable observation for both indoor and outdoor use. Close Distance Observation The binoculars can focus on subjects as close as 50cm. The built in convergence correction mechanism adjusts the lenses to eliminate visual discrepancies