More coats mean less ultraviolet rays. The UCF WRs come standard with Pentax multi-coating which also improves light transmission with no glare or flare. Tough rubber coating is easy to grip and means these binoculars don't leave your side even in the dust, cold or rain. Even with the additional zoom range, the famed UCF design remains untouched. This means the binos are always correctly aligned which eliminates headaches.
More coats equal more light.
Pentax's super multi-coated lens allows more light to enter while eliminating irritating glare and flare. Take them on the road. With their tough rubberized exterior, the 8-20x24 UCF zoom resists scratches, dust, dirt and shock. Like all Pentax binoculars, the 8-20x24 UCF Zoom comes with a limited lifetime warranty, case, lens caps and strap. UCF Mini Series Small enough to stow in your pocket, the UCF minis are available in 8x21 and 10x21 magnification.