Image:USCGS-E134.jpg

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[edit] Summary

E 134, a U.S. Coast & Geodetic Survey (now NGS) benchmark located on North Avenue in Chicago, IL. The crossed lines at the center of the disk mark an altitude of 598.95 feet above mean sea level. The disk is stamped with its designation (E 134) and the year in which it was set (1947). A complete datasheet for this benchmark can be found at the NGS website.

Photograph taken 17 April 2004 at 41°54′37.9″N, 87°40′41.9″W, looking north.

© 2004, Jeremy Atherton.

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Creative Commons Attribution iconCreative Commons Share Alike icon		 This file is licensed under the Creative Commons Attribution ShareAlike 2.5 License. In short: you are free to share and make derivative works of the file under the conditions that you appropriately attribute it, and that you distribute it only under a license identical to this one. Official license

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Date/TimeDimensionsUserComment
current02:35, 31 October 20061,668×1,622 (1.61 MB)JeremyA (larger version)
05:03, 3 January 2006600×600 (155 KB)JeremyA (E 134, a U.S. Coast & Geodetic Survey (now NGS) benchmark located on North Avenue in Chicago, IL. The crossed lines at the center of the disk mark an altitude of 598.95 feet above mean sea level. The disk is stamped with it)
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Metadata

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Camera manufacturer Canon
Camera model Canon PowerShot S400
Exposure time 1/250 sec (0.004)
F-number f/7.1
Date and time of data generation 12:36, 17 April 2004
Lens focal length 7.40625 mm
Orientation Normal
Horizontal resolution 72 dpi
Vertical resolution 72 dpi
Software used QuickTime 7.1.3
File change date and time 20:32, 30 October 2006
Y and C positioning 1
Exif version 2.2
Date and time of digitizing 12:36, 17 April 2004
Shutter speed 7.96875
Aperture 5.65625
Exposure bias 0
Maximum land aperture 2.96875
Metering mode Pattern
Flash 24
Color space sRGB
Sensing method One-chip color area sensor