Optics. Camera Obscura

Scarce c.19th fine engraving of camera obscuras.

A camera obscura consists of a box, tent, or room with a small hole in one side or the top. Light from an external scene passes through the hole and strikes a surface inside, where the scene is reproduced, inverted (upside-down) and reversed (left to right), but with colour and perspective preserved.

From: Rees, Cyclopaedia, or Universal Dictionary of Arts, Sciences, and Literature

Collections:
National Library Australia: Bib ID: 7744
State Library South Australia: 032 b v.1-39
Wellcome Collection: EPB/ENCY/1
National Maritime Museum Greenwich: Call Number 03:094
Royal Academy: 03/2943
Yale University Library & Art Gallery: WF 687
State Library New South Wales: 991011546239702626
State Library Victoria: 9940419727807636