Pentax UP Binoculars 8-16x21 Black 61961

The Pentax UP Binoculars 8-16x21 in black are compact, zoom-capable optics designed for travelers, hikers, and nature enthusiasts who want flexible magnification in a rugged, pocket-friendly package. With Porro prism optics and edge-to-edge clarity, they deliver versatile performance from close-range to distant subjects.

• Magnification: 8.0–16.0x optical zoom for quick switches between wide views and close detail
• Objective Lens Diameter: 21 mm for a compact profile
• Prism Type: Porro prism for a wide, immersive field of view
• Optical Elements: Aspherical lens elements to maintain sharpness from center to edge
• Focusing System: Center focus with a minimum focus distance of 10 ft (3 m)
• Eye Relief: 14–11 mm, accommodating eyeglass wearers
• Eyepiece Mechanism: Helicoid eyepiece ring for smooth, precise adjustments
• Body Design: Uni-body construction locks the objective lens in a single housing and synchronizes eyepiece movement for durability
• Field of View: Real field of view 5–3 degrees; 1000 m view of 87–52 m
• Exit Pupil: 2.6–1.3 mm
• Color: Black finish
• Country of Origin: China
• Dimensions: 4.37" x 4.37"

These binoculars excel in real-world viewing scenarios: zoom in on distant wildlife without switching devices, scan landscapes during travel, or observe coastal cliffs and mountains from a comfortable distance. The edge-to-edge sharpness, combined with a compact form and robust build, makes them a reliable companion for outdoor adventures. The 14–11 mm eye relief and the helicoid eyepiece ring support comfortable, extended use, while the durable uni-body design helps ensure dependable performance in varying weather and rugged environments.