Opera glasses
From Wikipedia, the free encyclopedia
Opera glasses, also known as theater binoculars, are discreet and compact low-power binoculars, usually used at performance events. For opera glasses, magnification (power) below 5x is usually desired in order to minimize image shake and maintain a large enough field of view. A magnification of 3x is normally recommended. When used at a musical, the opera, the ballet, rock concert, theater, or circus, good opera glasses or pocket-sized compact theater binoculars can provide a front row view.
