Pentax UP 10x25mm Porro Prism Binoculars Black

The Pentax UP 10x25mm delivers 10x magnification in a compact Porro prism design measuring 4.5″ x 4.33″. The uni-body construction locks the objective lens in a single housing while synchronizing eyepiece movement, reinforcing durability. Apherical lens elements maintain sharp focus across the entire field of view, not just the center. With a 25mm objective clear aperture, 15mm eye relief, and a focusing range from 6.27 feet to infinity, these binoculars offer a 285-foot field of view at 1000 yards and a 2.5mm exit pupil. The helicoid eyepiece ring provides smooth focus adjustment.