File:PupilAberration.JPG
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PupilAberration.JPG (396 × 277 pixels, file size: 47 KB, MIME type: image/jpeg)
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Summary
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| Description |
English: This picture shows the pupil aberration of the Canon Lens FD 1:2.8/24mm. The pupil aberration serves to reduce the brightness decrease towards the corner of the photos taken with the depicted lens.
Both partial pictures are taken with the same distance between camera and depicted lens (about 30cm) and with the same aperture setting of the depicted lens. The surface of the entrance pupil is bigger for light coming from the side, compared with light parallel to the optical axis.
Deutsch: Dieses Bild zeigt die Pupillenaberration des Objektivs Canon FD 1:2.8 / 24mm. Die Pupillenaberration reduziert den Heligkeitsabfall zu den Ecken der Bilder hin, die mit diesem Objektiv aufgenommen werden. Beide hier gezeigten Teilbilder wurden mit der gleichen Blendeneinstellung des abgebildeten Objektivs gemacht. Man erkennt, dass durch die Pupillenaberration die Querschnittsfläche der Eintrittspupille bei seitlichem Lichteinfall größer ist als bei achsparallel einfallendem Licht. |
| Date | |
| Source | Own work |
| Author | Megatherium |
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I, the copyright holder of this work, hereby publish it under the following licenses:
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Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled GNU Free Documentation License. |
  
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This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license. | |
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| This licensing tag was added to this file as part of the GFDL licensing update. |
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 11:36, 21 April 2007 | | 396 × 277 (47 KB) | Megatherium (talk | contribs) | {{Information |Description=This picture shows the pupil aberration of the Canon Lens FD 1:2.8/24mm. The pupil aberration serves to reduce the brightness decrease towards the corner of the photos taken with the depicted lens. Both partial pictures are take |
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