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Camera obscura, early 18th century.

Camera obscura, early 18th century.
3 1 c m
40cm
actual image size: 32cm x 23cm

Description

The camera obscura was a popular sketching instrument in the 18th century. A lens in the draw tube and a mirror at 45 degrees to the horizontal focused the image onto a ground glas screen on the top of the box. A piece of paper was put onto the screen and the image was copied directly. This camera obscura is asociated with Dr Stephen Demainbray, (1710-1782), a science lecturer of the time.

Image Details

Image Ref.
 
10296340

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