File:Acequia-madre2017-1.jpg
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editDescriptionAcequia-madre2017-1.jpg |
English: Acequia Madre de Valero (Main Irrigation Ditch of Valero Mission). One in a network of ditches begun by the Spanish and their Indian charges at the founding of San Antonio in 1718. Hand-dug and made of dressed limestone, the acequia diverted water from San Antonio River through fields belonging to San Antonio de Valero Mission. Irrigation was the key to the growth of mission and town. The ditch paralleled present Broadway by Brackenridge Park and Alamo Street, then fed back into the river southwest of this section. It became part of modern waterworks after 1877. This section was restored, 1968. #78 |
Date | |
Source | Own work |
Author | Darrylpearson |
San Antonio, TX, United States[located in Hemisfair Park]
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 03:31, 20 February 2017 | ![]() | 1,383 × 2,074 (1.33 MB) | Darrylpearson (talk | contribs) | User created page with UploadWizard |
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Camera manufacturer | Canon |
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Camera model | Canon EOS REBEL T3i |
Exposure time | 1/640 sec (0.0015625) |
F-number | f/5.6 |
ISO speed rating | 2,500 |
Date and time of data generation | 16:12, 28 January 2017 |
Lens focal length | 50 mm |
Orientation | Normal |
Horizontal resolution | 72 dpi |
Vertical resolution | 72 dpi |
Software used | Microsoft Windows Photo Viewer 6.1.7600.16385 |
File change date and time | 20:22, 30 January 2017 |
Y and C positioning | Co-sited |
Exposure Program | Action program (biased toward fast shutter speed) |
Exif version | 2.3 |
Date and time of digitizing | 16:12, 28 January 2017 |
Meaning of each component |
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APEX shutter speed | 9.375 |
APEX aperture | 5 |
APEX exposure bias | 0 |
Metering mode | Pattern |
Flash | Flash did not fire, compulsory flash suppression |
Rating (out of 5) | 0 |