File:Tunnel system - Fort San Cristóbal (5420913529).jpg
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Summary
DescriptionTunnel system - Fort San Cristóbal (5420913529).jpg |
The Castillo de San Cristóbal is a Spanish fort in San Juan, Puerto Rico. It was built by Spain to protect against land based attacks on the city of San Juan. It is part of San Juan National Historic Site. Castillo de San Cristóbal is the largest fortification built by the Spanish in the New World. When it was finished in 1783, it covered about 27 acres of land and basically wrapped around the city of San Juan. Entry to the city was sealed by San Cristóbal's double gates. After close to one hundred years of relative peace in the area, part of the fortification (about a third) was demolished in 1897 to help ease the flow of traffic in and out of the walled city. This fortress was built on a hill originally known as the Cerro de la Horca or the Cerro del Quemadero, which was changed to Cerro de San Cristóbal in celebration of the Spanish victories ejecting English and Dutch interlopers from the island of this name in the Lesser Antilles, then forming part of the insular territorial glacis of Puerto Rico. [Wikipedia.org] |
Date | |
Source | Tunnel system - Fort San Cristóbal |
Author | Jorge Láscar from Australia |
Camera location | 18° 28′ 04.69″ N, 66° 06′ 36.48″ W | View this and other nearby images on: OpenStreetMap | 18.467969; -66.110133 |
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Licensing
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This image was originally posted to Flickr by Jorge Lascar at https://www.flickr.com/photos/8721758@N06/5420913529. It was reviewed on 2 April 2014 by FlickreviewR and was confirmed to be licensed under the terms of the cc-by-2.0. |
2 April 2014
Items portrayed in this file
depicts
some value
27 December 2010
18°28'4.688"N, 66°6'36.479"W
1,600
0.4 second
4.5
13 millimetre
File history
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 07:45, 2 April 2014 | 4,288 × 2,848 (2.95 MB) | Russavia | Transferred from Flickr |
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Metadata
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Camera manufacturer | NIKON CORPORATION |
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Camera model | NIKON D90 |
Exposure time | 2/5 sec (0.4) |
F-number | f/4.5 |
ISO speed rating | 1,600 |
Date and time of data generation | 11:22, 27 December 2010 |
Lens focal length | 13 mm |
Orientation | Normal |
Horizontal resolution | 300 dpi |
Vertical resolution | 300 dpi |
Software used | Ver.1.00 |
File change date and time | 11:22, 27 December 2010 |
Y and C positioning | Co-sited |
Exposure Program | Not defined |
Exif version | 2.21 |
Date and time of digitizing | 11:22, 27 December 2010 |
Meaning of each component |
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Image compression mode | 2 |
Exposure bias | 0 |
Maximum land aperture | 4.4 APEX (f/4.59) |
Metering mode | Pattern |
Light source | Unknown |
Flash | Flash did not fire, auto mode |
DateTime subseconds | 00 |
DateTimeOriginal subseconds | 00 |
DateTimeDigitized subseconds | 00 |
Supported Flashpix version | 1 |
Color space | sRGB |
Sensing method | One-chip color area sensor |
File source | Digital still camera |
Scene type | A directly photographed image |
Custom image processing | Normal process |
Exposure mode | Auto exposure |
White balance | Auto white balance |
Digital zoom ratio | 1 |
Focal length in 35 mm film | 19 mm |
Scene capture type | Standard |
Scene control | High gain up |
Contrast | Normal |
Saturation | Normal |
Sharpness | Normal |
Subject distance range | Unknown |
GPS tag version | 2.2.0.0 |