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Engraved encyclopedia plate showing camera obscura diagrams: a wooden box, a tent-like viewing device, a figure on a chair, and labeled measuring details.

Camera Obscura Design, Plate from Encyclopédie

An engraved plate of technical diagrams with a French caption reading Dessein, chambre obscure. The upper scene shows a tent-like camera obscura beside a seated figure and a wooden cabinet, while the lower section details the box's interior, mirror, and measuring scale in fine black line.

Artist
A. J. Defehrt
Date
1762/77
Medium
Engraving on cream laid paper
Source
Art Institute of Chicago
Size
1686 × 2577 px
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Public domain · Art Institute of Chicago releases this image under CC0 (latest date 1777).
Rights checked 2026-11-05 · tier A · as stated by the source: CC0 (Art Institute of Chicago, is_public_domain=true)

Credit (appreciated, not required for public-domain works): Art Institute of Chicago, Buckingham Book Appropriation