Available in a wide variety of beautiful color schemes the Hamlet Opera Glasses feature 4x magnification and large 30mm objective lenses. While the 4x magnification will allow you to catch every bit of the action, the Hamlet's 30mm objective lenses will gather more light for a brighter and larger image. The strong aluminum alloy body and central focusing will insure many years of comfortable viewing experience. Besides being optically superior to most other opera glasses, the Hamlet Opera Glasses also feature an eye-catching body stile that is both unique and elegant. Technical Specifications Field of view, angle degrees: 9 Minimum focus distance: 9' / 3M Distance between oculars: Adjustable from 56mm to 72mm Dimensions: 4.3 x 2.95 x 1.75 (110 x 75 x 45mm) Weight: 9oz / 0.25 kg