Pentax 10x25 U-Series UP WP Compact Binocularsemploys an innovative unibody design that locks the objective lenses into the body with the eyepieces set on a synchronized dual-axis mechanism that ensures they stay symmetrical in relation to the center axis of the optic when adjusting the interpupillary distance. The 25mm objective lenses are fully multicoated to reduce reflection and maximize light transmission to produce the brightest images possible. Aspherical lens elements virtually eliminate distortion, especially around the edges, and corrects for lens astigmatism which can prevent sharp focusing.

Designed for easy carrying and stowing, the binocular features a lightweight fiberglass reinforced polycarbonate housing that is corrosion and impact resistant. The housing material is also temperature-resistant allowing for its use in extreme climates while reducing expansion and contraction wide temperature variations 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 they can are submersible to 3.3', as well as fogproof in all weather conditions.

BAK4 Porro Prisms    Fully Multicoated Optics    Angle of View: 50°    Nitrogen-Filled, Water and Fogproof    Reinforced Polycarbonate Housing    Synchronized Eyepiece Adjustment    Center Focusing    Standard 1/4"-20 Tripod Mount    Twist-Up Eyecups

• 10x magnification
• 25mm objective lenses
• BAK4 porro-prism optical design
• Aspherical lens elements reduce distortion at the edges and corrects for lens astigmatism which can prevent sharp focusing
• Anti-reflection fully multicoated optics
• 262.5' field of view at 1000 yards
• 50° angle of view

• Dual-axis synchronized eyepiece adjustment ensures symmetrical placement when changing interpupillary distances
• Knurled center focus wheel
• Twist-up eyecups for use with or without eye wear
• 15mm eye relief, 2.5mm exit pupil
• Standard 1/4"-20 tripod mount

• Lightweight fiberglass reinforced polycarbonate housing
• Housing is corrosion, temperature and impact-resistant
• Nitrogen-filled for fogproof performance, submersible to 3.3' (1m)
• Rubberized armoring protects against impacts and provides slip-resistant grip
• Inner focusing mechanism provides smooth focus while preserving waterproof seals

Related Questions and Answers

Q: 1. Warranty?

A: Limited 25-Year Warranty

Q: 2. The protective covers for the lenses are not tight enough to stay on - what's a good alternative? Also, what would be a good carrying case for these?

A: While we are not aware of alternative lens covers we can tell you that the Lowepro Photo Traveler 150 Backpack (Mica) is a great option for a carrying case, BH #LOPT150.

Q: 3. Is the the carrying case of good quality? Does the carrying case have a strap (as stated in the "In The Box" section), or NO strap (as stated in Michael's review)? Please clarify.

A: The case has its own strap. Very durable case. I have owned one for over 8 years.

Q: 4. 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: 5. what accessories come with these binoculars - lens caps? Case? Strap?

A: In the box this item comes with: Neck Strap, Carrying Case with Strap, 2 x Objective Lens Caps, 2 x Eyepiece Caps, and a Limited Lifetime Warranty.

Q: 6. 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: 7. Does Pentax manufacture these in Japan?

A: Yes this series is made in Japan.

Q: 8. 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: 9. Is the interpupillary distance adjustable to fit the varying distances of the eyes in wide and/or narrow faces?

A: The IPD range on these goes from a minimum distance of 5.6cm up to 7.4cm, which as you can see by comparing the IPD with others is a good range for a bin in this class and means they should accommodate most people.

Q: 10. 81.7 foot minimum focus distance ? Is this correct info? What is the pupillary distance range of this model?

A: Ricoh/ Pentad website Focusing Range 3.0 m to infinity / 9.8 ft. to Infinity