Opera glasses,
also known as theatre binoculars or Galilean binoculars, are compact, low-power
optical magnifying devices typically used at performance events, whose name
derives from the traditional use of binoculars at opera performances.
Magnification power of less than 5× is usually desired in these circumstances
to minimise image flicker and maintain a sufficiently large field of view.
Normally, a magnification power of 3× is recommended. The design of many
modern, ornamental opera glasses is based on the popular 19th century
lorgnettes.
In addition to
the more stereotypical binocular type, folding opera glasses were another
common design. These were made mainly of metal and glass, with a faux leather
coating for grip and colour. Although folding glasses have been around in one
form or another since the 1890s, they were perhaps most popular in the mid-20th
century, and many from this era are marked "Made in Japan" or, more rarely,
"Made in Occupied Japan". The model can still be purchased new,
although most common contemporary models are now almost entirely plastic.
Galilean Binocular
260.00 Lei
Rodenstock GMBH is a German manufacturer of ophthalmic lenses and spectacle frames. The company, which was founded by Thuringian Josef Rodenstock in 1877, is headquartered in Munich. It e..
Galilean Binocular
319.00 Lei
Theatrical binoculars approximately 90-100 years old made of brass with mother of pearl. The binoculars have been very well preserved and the optics have retained their quality over the y..
Galilean binoculars
299.00 Lei
Needles this is an original pair of brass binoculars with an embossed ornament. In good working condition with clear binocular visibility. This piece has retained its original finish and ..