Image:Sally Port.JPG
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[edit] Summary
A sally port on Fort Canning Hill. Taken by User:Sengkang of ENglish.Wikipedia in Nov 2005.
"One of the at least three sally ports on Fort Canning Hill. Sally ports are small doors which lead in and out of forts. They are meant to help defenders enter or exit the fort undetected, and to be used in case of attack. The word "sally" means to make a sudden, vigorous exit. If an enemy is besieging a fort, the defenders can try to make a sudden attack through a sally port and surprise the enemy outside."
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This file contains additional information, probably added from the digital camera or scanner used to create or digitize it. If the file has been modified from its original state, some details may not fully reflect the modified image.
| Camera manufacturer | Canon |
|---|---|
| Camera model | Canon PowerShot A520 |
| Orientation | Normal |
| Horizontal resolution | 180 dpi |
| Vertical resolution | 180 dpi |
| File change date and time | 17:05, 4 November 2005 |
| Y and C positioning | 1 |
| Exposure time | 1/8 sec (0.125) |
| F-number | f/2.6 |
| Exif version | 2.2 |
| Date and time of data generation | 17:05, 4 November 2005 |
| Date and time of digitizing | 17:05, 4 November 2005 |
| Image compression mode | 3 |
| Shutter speed | 3 |
| Aperture | 2.75 |
| Exposure bias | 0 |
| Maximum land aperture | 2.75 |
| Metering mode | Pattern |
| Flash | 16 |
| Lens focal length | 5.8125 mm |
| Color space | sRGB |
| Focal plane X resolution | 7142.8571428571 |
| Focal plane Y resolution | 7142.8571428571 |
| 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 |
