Fully multi-coated optics and silvered BAK4 prisms combine to give the 10x50 Arena D-Series B Binoculars from Eschenbach Optik a bright, true image for birding, nature observation, and all-around use.

The binoculars feature twist-up eyecups to account for eyeglasses or sunglasses and a diopter adjustment ring to compensate for eyewear prescriptions. The center-focusing design makes it easy to achieve a tack-sharp image. A tripod mount is provided for the most stable, shake-free viewing experience.

The Arena D-Series binoculars come with lens dust covers, a padded strap, and a carry bag.

Silvered BAK4 Roof Prisms    Fully Multi-Coated Optics    Wide Angle Viewing: 54°    Nitrogen-Filled, Waterproof/Fogproof    Closed-Bridge Configuration    Center Focusing    Tripod Mount    Twist-Up Eyecups & Diopter Adjustment

• 10x magnification
• 50mm objective lenses
• BAK4 prisms
• Fully multi-coated optics
• 283' field of view at 1000 yd
• 9.8' close focusing distance

• Closed-bridge configuration for balanced handling
• Rapid focus center wheel with gripping ridges
• Twist-up rubber eyecups for use with or without eyewear
• Right eye dioptric correction
• Interpupillary adjustment range: 58 to 74mm
• 12mm eye relief
• 5.0mm exit pupil

• Nitrogen-filled for waterproof and fogproof performance
• 26.1-ounce weight

Related Questions and Answers

Q: 1. Hi BH! What are the ocular lens diameter (not objective lens, wich is 25 mm)?

A: Exit Pupil Diameter 3.1 mm

Q: 2. Does center focus mean only that, no adjustment for eye difference as in binoculars?

A: Yes that would be true. Center focus you do not have any diopter adjustment. It's the center focus wheel.

Q: 3. Made in China or Japan

A: They are Zuiko optics. The best in the industry. Who cares where they are made. . . . I'm pretty sure they are Japanese manufactured, but they are not marked.

Q: 4. Are Eschenbach binos German-made?

A: They are made in China.

Q: 5. 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: 6. Hello between this Konus 10x50 and Vanguard 10x50 VEO ED What is more easy to use for person with eyeglass.

A: The Vanguard 10x50 VEO ED Binoculars have a larger eye relief than the Konus, so the Vanguard 10x50 VEO ED Binoculars are easier to use when wearing eyeglasses.

Q: 7. how do I attach a barska tripod adaptor to these binoculars?

A: Unscrew the front button with the Nikon logo. That's where it looks like the adapter screws into.

Q: 8. What are the differences between this item MFR #131056 & MFR #131056C?

A: The 131056C is a discontinued model no longer available. It was replaced by the 131056

Q: 9. What type of prism used here- BK7 or BAK-4

A: Looks like BK7 to me.

Q: 10. Are these binoculars okay for eyeglass wearers?

A: Yes they are. These binoculars have fold-down rubber eyecups for easy use with or without eye wear.