File:Equal illuminance.svg
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Size of this PNG preview of this SVG file: 800 × 375 pixels. Other resolutions: 320 × 150 pixels | 640 × 300 pixels | 1,024 × 480 pixels | 1,280 × 599 pixels | 2,560 × 1,199 pixels | 867 × 406 pixels.
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Summary
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| Description |
English: Diagram showing why two lenses, with different focal lengths but the same aperture setting, will produce the same illuminance in the focal plane. Focal lengths and aperture sizes are not to scale. |
| Source | Own work |
| Author | Markdaams |
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I, the copyright holder of this work, hereby publish it under the following license:
This file is licensed under the Creative Commons Attribution 3.0 Unported license.
- You are free:
- to share – to copy, distribute and transmit the work
- to remix – to adapt the work
- Under the following conditions:
- attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 13:12, 21 January 2010 | | 867 × 406 (13 KB) | Markdaams (talk | contribs) | {{Information |Description={{en|1=Diagram showing why two lenses, with different focal lengths but the same aperture setting, will produce the same illumination in the focal plane.}} |Source={{own}} |Author=Markdaams |Date= |Permission= |
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