Canon 18 x 50 IS All Weather Binoculars

High-Power, Large Binoculars Perfect for Star Gazing or When You Can't Get Close Enough. (Featuring an Image Stabilizer and All-Weather design.)
With its wide 50mm objective lenses and high magnification,these rugged, all-weather Canon Image Stabilizer binoculars are destined to set a new and higher benchmark for image brightness, clarity and ergonomic design.

Features

* Built-in Image Stabilizer (IS) provides shake-free performance.
* High magnification ratio: 18X.
* Ultra-low dispersion (UD) glass elements for exceptional image quality.
* Doublet field-flattener for sharp, distortion-free images from edge-to-edge.
* Extra-bright, large diameter 50mm objective lens.
* Long eye relief: 15mm.
* Water-resistant construction with non-slip rubberized grip.

Binocular Specifications

Type: Prism Binoculars
Magnification: 18x
Objective Lens Effective Diameter: 50mm
Filter Size: 58mm
Real Field of View: 3.7°
Apparent Field of View: 66.6°
Objective Lens Construction: 4 elements in 3 groups (including protective glass)
Eyepiece Lens Construction: 7 elements in 5 groups
Exit Pupil Diameter: 2.8mm
Eye Relief: 15mm
Prism Type: Porro II
Eye Width adjustment: 58mm ~ 76mm
Focusing Method: Manual focusing by turning the focusing knob
Dioptric Correction: ±3.0 diopters
Closest Focusing Distance: 6 m/19.7 ft.
Image Stabilizer: Vari-Angle Prism
Correction angle: ±0.7°
Tripod Socket: Provided
Power Source: 2 x AA
Dimensions: 152 x 193 x 1180mm/6.0 x 7.6 x 3.2 in.
Weight: 1180g/41.6 oz. (excluding batteries)