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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Date/TimeDimensionsUserComment
current10:17, 8 February 20061,200×1,600 (910 KB)Sengkang (A sally port on Fort Canning Hill. Taken by User:Sengkang of ENglish.Wikipedia in Nov 2005.)
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Camera manufacturer Canon
Camera model Canon PowerShot A520
Exposure time 1/8 sec (0.125)
F-number f/2.6
Date and time of data generation 17:05, 4 November 2005
Lens focal length 5.8125 mm
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
Exif version 2.2
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
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