FRS 123: Technology in Art and Cultural Heritage Devices for Linear Perspective.

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Presentation transcript:

FRS 123: Technology in Art and Cultural Heritage Devices for Linear Perspective

Zahn’s Camera Obscura (1685) Zahn’s portable camera: built-in lens, screenZahn’s portable camera: built-in lens, screen

Dürer’s devices (early 1500s) Draftsman’s netDraftsman’s net Artist’s glassArtist’s glass

Dürer’s devices (early 1500s) Point plotting devicePoint plotting device

Cigoli’s Perspective Machine (1610) Moving pen moves bead in viewing frameMoving pen moves bead in viewing frame Two-handed interface (first etch-a-sketch?)Two-handed interface (first etch-a-sketch?)

Superposition Devices – 1806: Wollaston’s camera lucida – 1811: Varley’s graphic telescope – Simultaneously see image of real world, paper

Online Perspective Applet 98/perspective/assistant.html