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With an eye for the discerning nature enthusiast, the Pentax 8x43 Z-Series ZD ED Binocular features multiple optical technologies to improve the image quality and ensure accurate colors in all weather and lighting conditions.
The image-enhancement starts with hybrid aspherical lens elements and extra-low dispersion (ED) glass. The aspherical elements eliminate distortion around the edges of the lens for clear edge-to-edge views and corrects lens astigmatism that can prevent the ability to bring subjects into sharp focus. ED glass corrects for chromatic aberration to ensure colors are accurately rendered. Anti-reflection fully multicoated optics maximize light transmission through the entire optical path to make views appear bright and crisp, especially in low light. Finally, the BAK4 roof prisms are phase-corrected to enhance contrast and further correct chromatic aberration. These technologies work together to produce bright and clear high-contrast images with accurate colors and virtually no distortion.
Complementing the optical performance is a housing that is built for a lifetime of rugged outdoor use. The chassis is made of a lightweight and durable magnesium alloy with a rubberized armor that protects against impacts while providing a slip-resistant grip. The optical tubes are nitrogen filled for fogproof performance and O-ring sealed to make the binocular submersible to as much as 3.3'. An protective external lens coating helps to repel dust, water, and oil to ensure obstruction-free viewing. For longer glassing sessions, they are tripod mountable with an optional adapter.
43mm objective lenses
BAK4 Roof prism optical path
Anti-reflection fully multicoated optics
Extra-low dispersion (ED) glass reduces chromatic aberration for sharper images with accurate color
Phase corrected prisms produce high-contrast images with true color rendition
Hybrid aspherical lens elements correct for spherical aberrations to reduce distortion at the edges of the lens and corrects for astigmatism that can prevent sharp focusing
330.8' field of view at 1000 yards
50° angle of view
Use and Handling
Closed bridge configuration
Large knurled center focus wheel
Right-eye diopter adjustment
22mm eye relief, 5.4mm exit pupil
Twist-up eyecups for use with or without eye wear
Tripod mountable with optional adapter
Lightweight and durable magnesium alloy housing
Rubberized armoring protects against impacts and provides slip-resistant grip
Nitrogen-filled, fogproof and submersible to 3.3' (1m)
Internal focusing system helps to maintain waterproof seals
Dust/water/grease repellent coatings keeps the optical surfaces clean