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[edit] Description
This image shows a "fat" lens with a short focal length "trying" to focus some light beams coming in from the left. Because of what is known as spherical aberration, the beams don't meet up in a single point.
[edit] Licensing
I, the author of this work, hereby publish it under the following license:
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[edit] POV-Ray code
This image was rendered using POV-Ray for Windows version 3.6 and the scene description code shown in the page Image:FocalLength.png.
Billedehenvisninger
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