Friday, March 18, 2011

EXIF Data found in photos

Any idea what information resides within a digital photo or file? Exif data is a record of the settings a camera used to take a photo or video. This information is embedded into the files the camera saves... sometimes even contain the details of the location it was taken...scary how much info a digital file contains...

Below is a sample of Exif data from a photo taken by Apple iPhone 4 (displayed by Flickr):


Taken on February 26, 2011 at 1.57pm MYT (edit)
Posted to Flickr February 27, 2011 at 12.38AM MYT (edit)
Replaced on Flickr February 27, 2011

Exif data

Camera Apple iPhone 4
Exposure 0.067 sec (1/15)
Aperture f/2.8
Focal Length 3.9 mm
ISO Speed 320
Flash Off, Did not fire
Orientation Horizontal (normal)
X-Resolution 72 dpi
Y-Resolution 72 dpi
Software QuickTime 7.6.6
Date and Time (Modified) 2011:02:27 00:42:15
Host Computer Mac OS X 10.6.4
YCbCr Positioning Centered
Exposure Program Program AE
Date and Time (Original) 2011:02:26 13:57:49
Date and Time (Digitized) 2011:02:26 13:57:49
Metering Mode Spot
Subject Area 0
Color Space sRGB
Sensing Method One-chip color area
Exposure Mode Auto
White Balance Auto
Scene Capture Type Standard
Sharpness Hard
Viewing Conditions Illuminant Type D50
Measurement Observer CIE 1931
Measurement Flare 0.999%
Measurement Illuminant D65

For those uncomfortable displaying all those Exif data, you can always opt to "Hide" those data

EXIF Data Privacy

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