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File:Jacob Appelbaum and Donald Knuth.jpg

Description
English: "Nested parens" — A photo depicting Donald Knuth.
Date 8 November 2008, 20:27
Source I'm actually Knuth's homeboy
Author Jacob Appelbaum from san francisco, USA

Licensing

w:en:Creative Commons
attribution share alike		 This file is licensed under the Creative Commons Attribution-Share Alike 2.0 Generic license.
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Checked copyright icon.svg This image, originally posted to Flickr, was reviewed on 13 October 2012 by the administrator or reviewer File Upload Bot (Magnus Manske), who confirmed that it was available on Flickr under the stated license on that date.
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Metadata

This file contains additional information, probably added from the digital camera or scanner used to create or digitize it. If the file has been modified from its original state, some details may not fully reflect the modified file.
Camera manufacturer Canon
Camera model Canon PowerShot SD950 IS
Exposure time 1/60 sec (0.016666666666667)
F-number f/2.8
ISO speed rating 200
Date and time of data generation 20:27, 8 November 2008
Lens focal length 7.7 mm
Orientation Normal
Horizontal resolution 180 dpi
Vertical resolution 180 dpi
File change date and time 20:27, 8 November 2008
Y and C positioning Centered
Exif version 2.2
Date and time of digitizing 20:27, 8 November 2008
Meaning of each component
  1. Y
  2. Cb
  3. Cr
  4. does not exist
Image compression mode 5
Shutter speed 5.90625
APEX aperture 2.96875
Exposure bias 0
Maximum land aperture 2.96875 APEX (f/2.8)
Metering mode Pattern
Flash Flash fired, auto mode
Supported Flashpix version 0,100
Colour space sRGB
Focal plane X resolution 13,745.704467354
Focal plane Y resolution 13,698.630136986
Focal plane resolution unit inches
Sensing method One-chip colour area sensor
File source Digital still camera
Custom image processing Normal process
Exposure mode Auto exposure
White balance Auto white balance
Digital zoom ratio 1
Scene capture type Standard

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