Image:Military Point Alcatraz 1866-1868 (model).JPG
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A model of Military Point Alcatraz now on display at Alcatraz Island, showing the original Cape Cod style lighthouse and the 200 ft x 100 ft Citadel (a fortified barracks) to the left of it. Alcatraz's current lighthouse is in approximately the same position. Most of the Citadel was razed to make way for the main cell block (built 1909-12) that now stands on the site, though the Citadel's bottom floor (which was below ground level owing to the fact the building was situated in a sunken pit or "moat" to make it more difficult to attack) was incorporated into the new structure.
The accompanying plaque reads:
"Military Point Alcatraz, 1866-1868
This model represents Alcatraz Island during its most heavily armed period, with 108 guns mounted.
Model researched, designed and constructed by Park Ranger Rex Norman.
Model not to scale"
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I, the copyright holder of this work, hereby grant the permission 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. |
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| Date/Time | Dimensions | User | Comment | |
|---|---|---|---|---|
| current | 17:36, 25 September 2007 | 1,024×768 (243 KB) | Lexington50 (Talk | contribs) | (A model of Military Point Alcatraz now on display at Alcatraz Island, showing the original Cape Cod style lighthouse and the 200 ft x 100 ft Citadel (a fortified barracks) behind it. Alcatraz's current lighthouse is in approximately the same position. The) |
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| Camera manufacturer | Canon |
|---|---|
| Camera model | Canon PowerShot A520 |
| Exposure time | 1/60 sec (0.016666666666667) |
| F-number | f/4.5 |
| Date and time of data generation | 13:04, 20 July 2007 |
| Lens focal length | 16 mm |
| Orientation | Normal |
| Horizontal resolution | 180 dpi |
| Vertical resolution | 180 dpi |
| File change date and time | 13:04, 20 July 2007 |
| Y and C positioning | 1 |
| Exif version | 2.2 |
| Date and time of digitizing | 13:04, 20 July 2007 |
| Image compression mode | 3 |
| Shutter speed | 5.90625 |
| Aperture | 4.34375 |
| Exposure bias | 0 |
| Maximum land aperture | 4.34375 |
| Metering mode | Pattern |
| Flash | 89 |
| Color space | sRGB |
| Focal plane X resolution | 4571.4285714286 |
| Focal plane Y resolution | 4571.4285714286 |
| 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 |
