The U series consists of binoculars in porro prism type. They are ultra-compact and have a housing with synchronized adjustment of the pupillary distance. The new full coating (Full Multi Coating) guarantees high light transmission. Aspherical lens elements give edge-to-edge sharpness. These binoculars are the perfect companion for almost any application. The Papilio series takes a special and unique position with a near distance of 50 cm. BaK4 with high light transmission and resolution; Multiple compensation on all lenses; Unique macro function with a setting limit of 50 cm; Continuous rubber reinforcement for protection and secure hold; Synchronized adjustment of pupil distance; Central dial for setting the diopter; Aspherical lens elements for sharpness to the corners; Lightweight and compact;