Aids to drawing: The field camera Sketching with the aid of a portable tent - type camera obscura. Behind the lens mounted on top of the tent is a mirror angled at 45 degrees. The image collected by the lens was reflected in the mirror and projected down on to a sheet of white paper. engraving from "The Science Record" (New York; 1874)
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Details
Creative#:
TOP29592285
Source:
達志影像
Authorization Type:
RM
Release Information:
須由TPG 完整授權
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Not Available
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No
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