25.5 MB (1.7 MB compressed)
3574 x 2492 pixels
30.2 x 21.1 cm ⏐ 11.9 x 8.3 in (300dpi)
LIBRARY OF CONGRESS, RARE BOOK AND SPECIAL COLLECTIONS DIVISION / SCIENCE PHOTO LIBRARY LIBRARY OF CONGRESS, RARE BOOK AND SPECIAL COLLECTIONS DIVISION / SCIENCE PHOTO LIBRARY
Perspective projection. 17th-century illustration of a pinhole viewer being used to draw a reduced scale image of an object on a screen, demonstrating the principles of projection and perspective. This method is a standard artistic technique to draw accurate reduced scale drawings. This illustration is from a collection of 17th-century Italian and Spanish manuscripts.
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