Bryn Glas Tunnels M4 (Eastern Portal) - geograph.org.uk - 109138.jpg

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	Date/Time	Thumbnail	Dimensions	User	Comment
current	12:20, 16 February 2016		599 × 449 (95 KB)	wikimediacommons>Seth Whales	Reverted to version as of 14:43, 15 February 2016 (UTC)

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Camera manufacturer	Canon
Camera model	Canon PowerShot S30
Exposure time	1/160 sec (0.00625)
F Number	f/4.9
Date and time of data generation	13:20, 21 January 2006
Lens focal length	21.3125 mm
Orientation	Normal
Horizontal resolution	150 dpi
Vertical resolution	150 dpi
Software used	Windows Photo Editor 10.0.10011.16384
File change date and time	14:42, 15 February 2016
Y and C positioning	Centred
Exif version	2.2
Date and time of digitising	13:20, 21 January 2006
Meaning of each component	Y Cb Cr does not exist
Image compression mode	5
APEX shutter speed	7.3125
APEX aperture	4.65625
APEX exposure bias	0
Maximum land aperture	2.9708557128906 APEX (f/2.8)
Metering mode	Pattern
Flash	Flash did not fire, compulsory flash suppression
Supported Flashpix version	1
Colour space	sRGB
Focal plane X resolution	7,366.9064748201
Focal plane Y resolution	7,349.2822966507
Focal plane resolution unit	inches
Sensing method	One-chip colour 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	Standard