File:Ptp p47 img02.png
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Captions
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Summary
[edit]DescriptionPtp p47 img02.png |
English: Second illustration on page 28 (47) captioned “Astigmatism of a Concentric Circles” |
Date | |
Source | https://archive.org/details/PhotographyTheoryAndPractice |
Author | L.P. Clerc |
Licensing
[edit]Public domainPublic domainfalsefalse |
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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 70 years or fewer.
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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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current | 18:33, 8 April 2011 | ![]() | 1,323 × 549 (126 KB) | Atelierelealbe (talk | contribs) |
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