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Size of this preview: 640 × 383 pixels Full resolution (1,292 × 774 pixels, file size: 291 KB, MIME type: image/jpeg)
 
      
       
       
       
        
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         This is a file from the  Wikimedia Commons. The description on its  description page there is shown below.Commons is a freely licensed media file repository.  You can help. 
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         | Description | 
         
          English: A simulation of spherical aberration in an optical system with a circular, unobstructed aperture admitting a monochromatic point source. The top row is over-corrected (half a wavelength), the middle row is perfectly corrected, and the bottom row is under-corrected (half a wavelength). Going left to right, one moves from being inside focus to outside focus. The middle column is perfectly focused. Also note the equivalence of inside-focus over-correction to outside-focus under-correction. See the corresponding  longitudinal sections.  See also
           
           
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         | Source | 
         
           Transferred from  en.wikipedia; transfer was stated to be made by  User:Undead_warrior.  | 
        
        
         | Date | 
         
           2005-06-14 (original upload date)  | 
        
        
         | Author | 
         
           Original uploader was  Mdf at  en.wikipedia  | 
        
        
         Permission ( Reusing this image) | 
         
           Released into the public domain (by the author). 
            
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 License information
       
        
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         This image has been released into the  public domain by its author,  Mdf. This applies worldwide. 
          In some countries this may not be legally possible; if so:  Mdf grants anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law.  
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 Original upload log
       The original description page is/was  here. All following user names refer to en.wikipedia.
        - 2005-06-14 18:51  Mdf 1292×774×8 (298395 bytes) A simulation of spherical aberration in an optical system with a circular, unobstructed aperture admitting a monochromatic point source. The top row is over-corrected (half a wavelength), the middle row is perfectly corrected, and the bottom row is under-
 
       
       
       
      File history
      Click on a date/time to view the file as it appeared at that time. 
       
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        Date/Time | 
        Dimensions | 
        User | 
        Comment | 
       
       
        | current | 
         02:49, 15 July 2008 | 
        1,292×774 (291 KB) | 
        Undead warrior | 
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      File links
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