Image:Sandstone Concretion.jpg
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[edit] Summary
This natural sandstone formation is made of tiny quartz chrystals that cemented together grains of quartz sand. The concretion is on display at the National Museum of Natural History in Washington, D.C.. Author: David Bjorgen
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File history
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| Date/Time | Dimensions | User | Comment | |
|---|---|---|---|---|
| current | 12:40, 29 October 2005 | 1,200×1,800 (1.47 MB) | Cybjorg (Talk | contribs) | (This natural sandstone formation is made of tiny quartz chrystals that cemented together grains of quartz sand. The concretion is on display at the National Museum of Natural History in Washington, D.C.. Author: David Bjorgen) |
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Metadata
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| Camera manufacturer | Canon |
|---|---|
| Camera model | Canon EOS DIGITAL REBEL XT |
| Exposure time | 1/15 sec (0.066666666666667) |
| F-number | f/5.6 |
| Date and time of data generation | 03:42, 17 May 2005 |
| Lens focal length | 55 mm |
| Orientation | Normal |
| Horizontal resolution | 300 dpi |
| Vertical resolution | 300 dpi |
| Software used | Adobe Photoshop CS2 Windows |
| File change date and time | 12:43, 29 October 2005 |
| Author | unknown |
| Exposure Program | Normal program |
| ISO speed rating | 100 |
| Shutter speed | 3.906891 |
| Aperture | 4.970854 |
| Exposure bias | 0 |
| Metering mode | Pattern |
| Flash | 16 |
| Color space | sRGB |
