File:Du Ponceau by Cornelius 1840.jpg
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Captions
Summary
[edit]DescriptionDu Ponceau by Cornelius 1840.jpg |
English: Pre-studio daguerreotype of Peter Stephen Du Ponceau by Robert Cornelius. Presented in March 1840 at the American Philosophical Society. |
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Date | March 1840 (or earlier) | ||||||||||||||||||||||||||
Source |
https://www.amphilsoc.org/blog/hunt-better-solution https://luminous-lint.com/app/image/065560540826596732288583/A/ https://www.amphilsoc.org/exhibits/treasures/cornelius.htm |
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Author |
creator QS:P170,Q1398104 |
Licensing
[edit]Public domainPublic domainfalsefalse |
This work is in the public domain in its country of origin and other countries and areas where the copyright term is the author's life plus 100 years or fewer. You must also include a United States public domain tag to indicate why this work is in the public domain in the United States. | |
This file has been identified as being free of known restrictions under copyright law, including all related and neighboring rights. |
https://creativecommons.org/publicdomain/mark/1.0/PDMCreative Commons Public Domain Mark 1.0falsefalse
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 07:22, 10 July 2023 | 3,170 × 3,653 (2.24 MB) | Cesias7 (talk | contribs) | Uploaded a work by {{Creator:Robert Cornelius}} from https://www.amphilsoc.org/blog/hunt-better-solution https://luminous-lint.com/app/image/065560540826596732288583/A/ https://www.amphilsoc.org/exhibits/treasures/cornelius.htm with UploadWizard |
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Exposure time | 1/6 sec (0.16666666666667) |
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F-number | f/4 |
Lens focal length | 12.6 mm |
APEX shutter speed | 2.584963 |
APEX aperture | 4 |
APEX exposure bias | 0 |
Maximum land aperture | 3 APEX (f/2.83) |
Digital zoom ratio | 1 |