Pentax ZD WP Series Binoculars

Binoculars PENTAX ZD WP

Designed for nature enthusiasts and birdwatchers, the PENTAX Z-Series ZD WP binoculars feature multiple optical technologies to enhance image quality and ensure accurate colors in all weather and lighting conditions.

Image enhancement begins with hybrid aspherical lens elements that eliminate distortion around the edges of the lens for clear edge-to-edge views and correct lens astigmatism that can impede the ability to sharply focus on subjects. Fully multi-layered anti-reflective optics maximize light transmission across the entire optical path so that views appear bright and sharp, especially in low-light conditions. Finally, the BAK4 ceiling prisms are phased in to improve contrast and further correct chromatic aberration. These technologies work together to produce bright, clear, high-contrast images with accurate colors and virtually no distortion.

Complementing the optical performance is a housing built for a rough outdoor lifespan. The chassis is made of a lightweight and durable magnesium alloy with a rubber armor that protects against impacts and provides a non-slip grip. The optical tubes are filled with nitrogen for fog-proof performance and sealed with O-rings to make the binoculars submersible up to 3.3'. A protective external lens coating helps repel dust, water and oil to ensure unobstructed viewing. For longer glass sessions, they can be mounted on a tripod with an optional adapter.

Optical performance

• 8x and 10x magnification
• 43mm and 5mm objective lenses
• Optical path of the BAK4 roof prism
• Fully multi-layer anti-reflective optics
• Phase-corrected prisms produce high-contrast images with true color reproduction
• Hybrid aspherical lens elements correct spherical aberrations to reduce distortion at lens edges and correct astigmatism that can prevent sharp focusing
• 331' field of view at 1000 yards
• 50° viewing angle

Use and Management

• Closed bridge configuration
• Large knurled center focus wheel
• Adjustment of diopters of the right eye
• Ocular relief of 22 mm, exit pupil of 5.4 mm
• Twisted eyepieces for use with or without glasses
• Mountable tripod with optional adapter

Construction details

• Lightweight and durable magnesium alloy housing
• Rubber armor protects against impacts and provides a non-slip grip.
• Nitrogen-filled, fog-proof and submersible up to 3.3' (1m)
• Internal focusing system helps keep seals waterproof
• Dust, water and grease repellent coatings keep optical surfaces clean