File:RotatingDiaphragm Derr1906.png
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Summary
[edit]Figure 50 from Louis Derr, Photography for students of physics and chemistry London: The Macmillan Co., 1906.
Licensing
[edit] | This image is in the public domain in the United States. In most cases, this means that it was first published prior to January 1, 1930 (see the template documentation 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. |  |
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File history
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 16:10, 29 May 2025 | | 949 × 1,031 (1.17 MB) | JayCubby (talk | contribs) | further cleanup |
| 16:06, 29 May 2025 |  | 949 × 1,031 (1.6 MB) | JayCubby (talk | contribs) | better res version, from IA scan. I cleaned up dust manually | |
| 18:38, 22 May 2006 |  | 220 × 300 (37 KB) | Dicklyon (talk | contribs) | Figure 50 from Louis Derr, ''Photography for students of physics and chemistry'' London: The Macmillan Co., 1906. |
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