Image:SFinRuins.jpg
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San Francisco in Ruins, 1906 kite aerial photo, should be public domain.
By George Lawrence. Depicts SF after the 1906 San Francisco earthquake.
The camera and rig used was designed by Lawrence. The camera weighed 46 lbs (20.8 kg), was lifted to an altitude of 800 ft (244 m) off the ground, and an electical impulse used to trigger the exposure. Rather than expose the entire negative at once, as in a conventional camera, Lawrence's design used a lens and mask to provide a narrow band of light vertically on the negative. A mechanism then slid the lens along an arc to expose the whole negative. This helped avoid distortion near the edges. The negative for this image is 22 inches (55.8 cm) tall and 55 inches (139.7 cm) wide.
Today taking this picture would require FAA approval as the kite reached more than 500 feet (152 m) in altitude.
Actual source was:
This image is in the public domain in the United States. In most cases, this means that it was first published in the United States prior to January 1, 1923 (see the talk page for more cases). Other jurisdictions may have other rules, and this image might not be in the public domain outside the United States. See Wikipedia:Public domain and Wikipedia:Copyrights for more details.
This image is an exact duplicate of Image:San Francisco In Ruins.jpg
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- (del) (cur) 02:35, 21 April 2005 . . Aarchiba (Talk | contribs) . . 1936×700 (224,540 bytes) (original high-res version)
- (del) (rev) 18:20, 25 February 2004 . . 33 Degrees (Talk | contribs) . . 968×350 (64,341 bytes) (SF in Ruins, 1906 kite aerial photograph, should be public domain)
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