Image:NYCSub ExpJoint.jpg
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Full resolution (2,272 × 1,704 pixels, file size: 1.8 MB, MIME type: image/jpeg)
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Subway track diagonal expansion joint (breather switch) on the Williamsburg Bridge. Due to thermal contraction and expansion each bridge changes its length over the seasons. This joint allows the tracks to give way avoiding stress buildup and deformation. Misalignment of the abrasion marks indicates that the image shows the bridge in a contracted state, which is consistent with the cold winter temperatures at the time the photo was taken. Image taken by Daniel Schwen on Dec 6th, 2005.
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| Date/Time | Dimensions | User | Comment | |
|---|---|---|---|---|
| current | 21:44, 12 December 2005 | 2,272×1,704 (1.8 MB) | Dschwen | (Subway track expansion joint on Williamsburg bridge. Due to thermal contraction and expansion each bridge changes its length. This joint allows the tracks to give way avoiding stress buildup and deformation. Image taken by Daniel Schwen o) |
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| Camera manufacturer | Canon |
|---|---|
| Camera model | Canon PowerShot G3 |
| Exposure time | 1/100 sec (0.01) |
| F-number | f/4 |
| Date and time of data generation | 19:08, 6 December 2005 |
| Lens focal length | 8 mm |
| Orientation | Normal |
| Horizontal resolution | 180 dpi |
| Vertical resolution | 180 dpi |
| File change date and time | 19:08, 6 December 2005 |
| Y and C positioning | 1 |
| Exif version | 2.2 |
| Date and time of digitizing | 19:08, 6 December 2005 |
| Image compression mode | 5 |
| Shutter speed | 6.65625 |
| Aperture | 4 |
| Exposure bias | 0 |
| Maximum land aperture | 2.28125 |
| Metering mode | CenterWeightedAverage |
| Flash | 16 |
| Color space | sRGB |
| Focal plane X resolution | 8114.2857142857 |
| Focal plane Y resolution | 8114.2857142857 |
| Focal plane resolution unit | inches |
| Sensing method | One-chip color area sensor |
| Custom image processing | Normal process |
| Exposure mode | Auto exposure |
| White balance | Auto white balance |
| Digital zoom ratio | 1 |
| Scene capture type | Standard |
