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500 BC
The Chinese writer and philosopher mentions the inverted image that appears when light passes through a small hole.
400 BC
The same observation was commented upon by Aristotle.
900
Yu Chao-Lung uses model pagodas to show pinhole images on a screen.
1000
Pinhole images are used to observe the eclipse of the sun.
1400
A pinhole perspective is used to understand the vanishing point in painting.
1480
Leonardo da Vinci provides the first detailed description of the pinhole formation.
1583
Observation of solar projections from a pinhole lead to the correction of the Julian calendar to the Gregorian calendar.
1558
Pinhole projections are used as an aid to drawing. Camera Obscura
1870
Pinhole photography using dry plates.
1970
Young photographers start experimenting with pinhole photography.
1980
The art establishment becomes interested in pinhole images.
1990
Pinhole interest groups are started to exchange ideas.
2000
The world wide web leads to widen the interest in pinhole photography. Many art galleries are now having Pinhole Exhibitions.
2003
A yahoo search under "Pinhole Photography" produces 35,000 hits
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