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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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 PowerShot S400 |
| 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 |
| Exposure time | 1/250 sec (0.004) |
| F-number | f/7.1 |
| Exif version | 2.2 |
| Date and time of data generation | 12:36, 17 April 2004 |
| 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 |
| Lens focal length | 7.40625 mm |
| Color space | sRGB |
| Sensing method | One-chip color area sensor |
