Opera glasses
Lua error in package.lua at line 80: module 'strict' not found.
Opera glasses, also known as theater binoculars or Galilean binoculars, are compact, low-power optical magnification devices, usually used at performance events, whose name is derived from traditional use at opera performances. Magnification power below 5× is usually desired in these circumstances in order to minimize image shake and maintain a large enough field of view.[citation needed] A magnification of 3× is normally recommended.[citation needed] The design of many modern opera glasses of the ornamental variety is based on the popular lorgnettes of the 19th century.
The London Opera Glass Company was founded in 1913 and provides opera glasses in many of London's West End theatres.[1][2]
See also
References
External links
 |
Wikimedia Commons has media related to [[commons:Lua error in Module:WikidataIB at line 506: attempt to index field 'wikibase' (a nil value).|Lua error in Module:WikidataIB at line 506: attempt to index field 'wikibase' (a nil value).]]. |
- Chambers's Encyclopaedia: A Dictionary of Universal Knowledge, Volume 7
- The Opticalia Museum Opera Glasses
- The Encyclopedia Americana, Volume 11
- The History of Opera Glasses
<templatestyles src="Asbox/styles.css"></templatestyles>
 |
This article about an opera or opera-related subject is a stub. You can help Wikipedia by expanding it. |
