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How can you determine the age of a pair of Chevalier Opticien Paris binoculars or opera glasses?
Wiki User
∙ 10y ago
They should have a makers mark or factory mark on them somewhere. You will need to cross reference the makers mark with the companies history to see what years that particular mark was used. Most craftsmen would change their mark from time to time so you can determine at least which generation or time period an item comes from even if you cannot determine the exact year.
If there is no makers mark you will need to cross reference the pattern or design with the companies catalogs and see what years that design was being manufactured, but you will also need to have it examined for authenticity. Companies that copied someone elses design without permission were just as likely to not have any makers mark as they were to try and forge the mark.
Wiki User
∙ 10y ago
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A pair of these make things bigger?
Binoculars
What are multi-coated binoculars?
Binoculars are like a pair of telescopes fixed together so there is one for each eye. The distance between them is adjustable for different people and they can be focussed on whatever you are looking at. They are vital for birdwatching, watching horse racing and in the military.
How do binoculars refract?
Binoculars are essentially a pair of identical refracting telescopes; they have a large objective lens at the front and a number of smaller lenses to enable an image to be brought into sharp focus. Prisms are used so that larger objective lenses can be used - otherwise they would be limited by the distance between the eyes. The prisms reflect the image through two right angles in the binoculars. The prisms also reverse the inversion that occurs in refracting telescopes.
What is the use of the binocular?
GENERAL USE Hand-held binoculars range from small 3 × 10 Galilean Opera glasses, used in theaters, to glasses with 7 to 12 diameters magnification and 30 to 50 mm objectives for typical outdoor use. Many tourist attractions have installed pedestal-mounted, coin-operated binoculars to allow visitors to obtain a closer view of the attraction. In the United Kingdom, 20 pence often gives a couple of minutes of operation, and in the United States, one or two quarters gives between one-and-a-half to two-and-a-half minutes.
Where were was the first binocular made?
Almost from the invention of the telescope in the 17th century the advantages of mounting two of them side by side for binocular vision seems to have been explored.The first binocular telescope, consisting of two telescopes placed side by side, was. constructed in 1608 by Johann Lipperhey, the inventor of the ordinary Dutch telescope.
What is a synonym for binoculars?
Synonyms for the noun binoculars are field glasses, lorgnette, pince-nez, prism binoculars, or opera glasses.
Field Glasses but you call them?
Binoculars.
What do you call field glasses with two pieces starts with bi?
It is binoculars.
What is the proper name for a pair of opera glasses?
According to Wikipedia, opera glasses are also known as theatre binoculars or Galilien binoculars. They are traditionally lower power binoculars -- 3x to 5x, and can be ornate.
If you have glasses do you see right through binoculars or scopes?
A person with glasses uses binoculars or a telescope in exactly the same way a person with normal vision does.
What do you look through to see things far?
Binoculars, glasses, magnifying glasses and teliscopes
A pair of these make things bigger?
Binoculars
What are Opera glasses used for?
Opera glasses are small binoculars used for viewing at a middle distance.
What type of light is used in binoculars?
Binoculars don't create light- they are a lot like glasses. Just glass.
What type of tool does a Zoologist use?
magnifying glasses and binoculars
How come it is bad to wear someones glasses but you can use binoculars?
No, but I do get yelled at by my wife for letting them put my glasses on for a couple seconds.
A device that allows distant objects to be seen more clearly?
binoculars, glasses, telescope
