File:Knaresborough Castle Sallyport.jpg
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Summary
[edit]DescriptionKnaresborough Castle Sallyport.jpg |
English: The photograph shows a section of one of Knaresborough Castle's secret underground military tunnels known as a Sallyport. Tunnels such as these were built to enable besieged castle garrisons to exit the castle in a stealthy manner to launch surprise attackers on besieging forces. This sallyport is the only one at Knaresborough that is actually accessible today. |
Date | |
Source | Harrogate Museums and Arts |
Author | Simon Miles, a representative of Harrogate Museums and Arts |
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 13:38, 15 October 2015 | 3,648 × 2,736 (1.7 MB) | Jonathan Fenny (talk | contribs) | User created page with UploadWizard |
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Metadata
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Camera manufacturer | Canon |
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Camera model | Canon PowerShot SX10 IS |
Exposure time | 1/8 sec (0.125) |
F-number | f/2.8 |
ISO speed rating | 250 |
Date and time of data generation | 12:59, 28 October 2009 |
Lens focal length | 5 mm |
Orientation | Normal |
Horizontal resolution | 180 dpi |
Vertical resolution | 180 dpi |
File change date and time | 12:59, 28 October 2009 |
Y and C positioning | Co-sited |
Exif version | 2.21 |
Date and time of digitizing | 12:59, 28 October 2009 |
Meaning of each component |
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Image compression mode | 3 |
APEX shutter speed | 3 |
APEX aperture | 2.96875 |
APEX exposure bias | 0 |
Maximum land aperture | 2.96875 APEX (f/2.8) |
Metering mode | Pattern |
Flash | Flash did not fire, compulsory flash suppression |
Supported Flashpix version | 1 |
Color space | sRGB |
Focal plane X resolution | 15,136.929460581 |
Focal plane Y resolution | 15,116.022099448 |
Focal plane resolution unit | inches |
Sensing method | One-chip color area sensor |
File source | Digital still camera |
Custom image processing | Normal process |
Exposure mode | Auto exposure |
White balance | Auto white balance |
Digital zoom ratio | 1 |
Scene capture type | Night scene |
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