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官方资料及图片。
180 Years of photography
Camera Obscura
The Camera Obscura, which is also known as the pinhole camera, is provided with a small hole in the casing. The term is Latin and when translated means "dark room". Light falls through the hole onto the opposite side and projects a reversed and upside down posed image of the external world.
Aristotle, amongst others, already knew this phenomenon during the pre-Christian period. As from the 13th century astronomers used it as an observation of sunspots and solar eclipse. Also Leonardo da Vinci looked into this topic and found out that the human eye functions in a very similar manner. In the consequence many artists used the Camera Obscura to produce perspectively correct and accurate detailed works by simply copying the projection.
We write the year 1826. Joseph Nicéphore Niépce inserts a tarmac coated slab in a Camera Obscura and directs it from his study onto the backyard. Eight hours later the wet tarmac was firm due to the incidence of light through the casing. The unexposed areas remained damp and were able to be etched away with a solvent. The first photo was taken. In the ensuing years photography was intensely advanced by Louis-Jacques-Mandé Daguerre und Wiliam Henry Fox Talbot. Therefore, together with Niépce, they are jointly considered as the inventors of photography.
180 years later a unique coin reminds us of the pioneer days. It shows a minted reproduction of the famous backyard. An additional drilled hole serves as a lens for the provided Camera Obscura and makes this ensemble a fully functional
photo camera. The pictures can be exposed on a customary 35mm film. Escape the fast moving digital world of photography and let yourself be enchanted by the special charm of original photo-technique.
Camera Obscura Coin
Delivered with functional 35mm Camera Obscura
Art.-No.: 22293
Country: Cook Islands
Year: 2006
Face value: 2 Dollars
Metal: Silver .925
Weight: 10 gr.
Diameter: 30 mm
Quality: BU
Mintage: 2'500 pcs. |
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