With a magnification range from 8X to 16X, the 8-16X21 UCF Zoom II binocular gives you incredible zooming ability with the convenience of a compact design. As with other UCF models, the 8-16x21 UCF Zoom II has an innovative dual-axis eye-distance adjustment system, high-refraction BaK4 glass prisms, multi-coated optical elements, and aspherical lens elements incorporated into the eyepiece optics. This portable, compact, user-friendly binocular is perfect for the viewer on the go - whether it be bird watching, sporting events, wildlife or indoor performance viewing.
Features

• Magnification power ranges from 8 to 16x21.
• Aspheric lens elements enhance edge-to-edge sharpness.
• In-line control system positions zooming, focusing and diopter adjustment together.
• High-refraction BaK4 glass prisms for brighter, clearer image.
• Pop-out right diopter adjustment knob.
• Protected by a limited lifetime warranty.

Specifications

Weight : 10.9 oz.

Eye Relief 11 : (16X) mm

Waterproof : No

Features : Zoom Lens

Magnification : 8-16 X

Brand : Pentax

Dimensions (in) : 4.4H x 4.4W

Objective Lens Diameter : 21 mm

Field of View @ 1000 Yards : 261-156 ft.

Exit Pupil : 2.6-1.3 mm

Focus Type : Center

Close Focusing Distance : 9.8 ft.

Relative Brightness : 6.7-1.7

Prism Type : Porro Prism Binoculars