Image:Dilated pupil.gk.jpg

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[edit] Summary

Description

This is my dilated pupil, an hour or two after getting drops put in them so the optometrist could examine my retinas. Taken with a Canon EF 50/1.8 and some autofocus extension tubes. I lined it up, showed my assistant how to get it to focus, and she took the shot.
Source

Own work. Also available from my flickr.
Date

2007-03-10
Author

grendel|khan and Lady Byron
Permission

CC-BY-SA on Flickr; additionally released as GFDL here.

[edit] Licensing

I, the author of this work, hereby publish it under the following licenses:
GNU head 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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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 image.

Camera manufacturer Canon
Camera model Canon EOS DIGITAL REBEL
Orientation Normal
Horizontal resolution 180 dpi
Vertical resolution 180 dpi
File change date and time 18:13, 10 March 2007
Y and C positioning 1
Exposure time 1/50 sec (0.02)
F-number f/4.5
ISO speed rating 800
Exif version 2.21
Date and time of data generation 18:13, 10 March 2007
Date and time of digitizing 18:13, 10 March 2007
Image compression mode 3
Shutter speed 5.6438598632812
Aperture 4.33984375
Exposure bias 0
Maximum land aperture 1.6959991455078
Metering mode Pattern
Flash 0
Lens focal length 50 mm
Color space sRGB
Focal plane X resolution 3443.9461883408
Focal plane Y resolution 3442.0168067227
Focal plane resolution unit inches
Sensing method One-chip color area sensor
Custom image processing Normal process
Exposure mode Auto exposure
White Balance Manual white balance
Scene capture type Standard
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