Designed for nature enthusiasts and bird watchers, the Pentax 10x50 Z-Series ZD WP Binoculars feature multiple optical technologies to improve the image quality and ensure accurate colors in all weather and lighting conditions - especially in low light, such as dawn and dusk when many birds and game are most active.

The image-enhancement starts with the 50mm objective lenses that draw in copious amounts of light and extend the practical useable ability well beyond smaller objective optics. The lenses are made with hybrid aspherical elements that 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. Anti-reflect 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 virtually no distortion and accurate colors.

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 binoculars submersible to as much as 3.3'. A protective external lens coating helps to repel dust, water, and oil to ensure obstruction-free viewing. The larger objectives add weight and bias the center of balance forward which could lead to user fatigue and possible hand-shake, so for steadier views during longer glassing sessions, the binoculars are tripod mountable with an optional adapter.

Phase-Corrected BAK4 Roof Prisms    Hybrid Aspherical Lens Elements    Fully Multicoated Optics    Angle of View: 50°    Nitrogen-Filled, Water and Fogproof    Closed Bridge Configuration    Magnesium Alloy Chassis    Knurled Center Focus Wheel    Tripod Mountable    Twist-Up Eyecups

• 10x magnification
• 50mm objective lenses
• BAK4 Roof prism optical path
• Anti-reflection fully multicoated optics
• 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
• 262' field of view at 1000 yards
• 50° angle of view

• Closed bridge configuration
• Large knurled center focus wheel
• Right-eye diopter adjustment
• 22mm long eye relief, 5.0mm 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

Related Questions and Answers

Q: 1. What is the IPD for these ?

A: By opening and closing the central pivot, you can adjust the distance between the eyecups (IPD) from a minimum setting of 5.8cm, right up to a maximum of 7.4cm. For a full sized bin, this is a pretty good range and means that they should be able to accommodate most people.

Q: 2. What is the difference between the SP and SP WP version of the same binoculars ?

A: The SP Version has a wider angle of view with the same Magnification as the SP WP. Plus the SP has a Eye Relief of 13mm, and the SP WP has a much more comfortable Eye relief of 20mm.

Q: 3. Is there a carrying case for this Pentax S-Series WP 10 x 42??

A: The Pentax 10x42 S-Series SD WP Binoculars BH #PE10X42SDWP • MFR #62762 comes with a carrying case. In the Box Pentax 10x42 S-Series SD WP Binoculars Neck Strap Carrying Case with Strap ********************** 2 x Objective Lens Caps 2 x Eyepiece Caps Limited 25-Year Warranty

Q: 4. Can you post the weight? It's interesting that the weight of the binoculars is not referenced in the specs.

A: General Dimensions 6.7 x 5.2 x 2.3" / 17 x 13.2 x 5.8 cm Weight 29.6 oz / 839.2 g

Q: 5. is the minimum focus distance of more than 56 feet correct? That would make these the longest focusing bins in history.

A: The minimum focus distance is 8.2 ft.

Q: 6. What type of tripod adapter does this item require?

A: So you could do the Bushnell Tripod Adapter for Binocular. This would be able to adapt this pair of binocular's onto a tripod. Website link to the model: http://bhpho.to/1IgVYdr

Q: 7. What is included in the package?

A: The Pentax 10x50 S-Series SP Binoculars BH #PE10X50SP • MFR #65903 comes with: Neck Strap Carrying Case with Strap 2 x Objective Lens Caps 2 x Eyepiece Caps Limited 25-Year Warranty

Q: 8. How does the 8 X 43 Z-Series' Hybrid Aspherical Lens Elements compare to its ED cousins in terms of refractive and abbe indexes?

A: The ED version will be significantly higher resolution and much brighter

Q: 9. how do they compare optica llyto the SD version? I don't spot diopter correction in these

A: The right eyepiece has a diopter adjustment. If you are referring to the Pentax 8x42 S-Series SD WP Binoculars BH #PE8X42SDWP • MFR #62761. The Pentax 8x43 Z-Series ZD WP Binoculars BH #PE8X43ZDWP • MFR #62721 has a Magnesium Alloy Chassis and a narrower field of view

Q: 10. They are manufactured in Japan or China?

A: According to the information we have, our current inventory's Country of Origin is China. Please be aware this can change over the product's production life without notice.