Pentax Binoculars UP 8-16x21 Zoom (49544)

Pentax UP 8-16x21 Zoom binoculars are compact and lightweight, featuring an inverted porro-prism design with a durable dual-axis, single body construction. The synchronized interpupillary distance adjustment ensures comfortable viewing for both eyes. Aspherical lens elements provide edge-to-edge sharpness, while fully multi-coated optics maximize light transmission and reduce glare, resulting in bright, clear images. These binoculars are versatile and suitable for a variety of uses, both indoors and outdoors, offering excellent performance at an affordable price.

Optical Features:

• Magnification: 8x to 16x optical zoom

• Objective lens diameter: 21 mm

• Exit pupil: 2.6 mm at 8x, 1.3 mm at 16x

• Eye relief: 14 mm at 8x, 11 mm at 16x

• Aspherical lens elements for sharpness across the entire field of view

• Fully multi-coated lenses for improved clarity and reduced flare

• BaK-4 porro prisms for bright and clear images

Design and Handling:

• Dual-axis, single body frame for durability and synchronized eyepiece adjustment

• Central focusing wheel for easy and precise focusing

• Rotatable sliding rubber eyecups, suitable for eyeglass wearers

• Rubber armoring for a secure, comfortable grip

• Compact dimensions: 111 mm (length) x 111 mm (width) x 55 mm (height)

• Weight: 310 g

Additional Information:

• Field of view (true): 5.0° at 8x, 3.0° at 16x

• Field of view at 1,000 m: 87 m at 8x, 53 m at 16x

• Close focus limit: 3.0 m

• Light intensity: 6.8 at 8x, 1.7 at 16x

• Twilight factor: 12.9 at 8x, 18.3 at 16x

• Splash-proof (not fully waterproof)

• Includes carrying case, neck strap, lens covers, and eyepiece caps

• Strap fitting specific to manufacturer

• Tripod socket included for stable, hands-free use

Recommended Uses:

• Astronomy: Not recommended

• Bird watching: Not recommended

• Travel and sports: Good

• Theatre: Good

• Hunting: Not recommended

• Sailing: Not recommended

These binoculars combine portability, variable zoom, and sharp optics, making them a practical and flexible choice for travel, sports, theatre, and general observation.