Pentax 's 9x32 A-Series AD WP Binocular features an exciting transitional magnification that produces an enhanced viewing experience over a lower power without the visible hand-shake often associated with higher magnifications. Its 32mm objectives bring in more light than smaller compact optics without being too bulky or heavy, weighing in at just over one pound. The BAK4 roof prisms are phase-corrected to improve image contrast and enhance color rendition. All of the optics are anti-reflection fully multicoated to maximize light transmission to produce the brightest views possible.

To help cut weight, the binocular is designed with an open bridge which also provides a larger grip-area for steadier views. The housing is made of corrosion and impact-resistant fiberglass reinforced polycarbonate polymer. It is also temperature-resistant allowing for its use in extreme climates while reducing expansion and contraction wide temperature swings can cause which can make the optical components move out of collimation over time. Its optical tubes are nitrogen-filled and O-ring sealed so it can be submersed to as much as 3.3', as well as be fogproof in all weather conditions.