http://dev.exiv2.org/boards/3/topics/1477

[Wani@Linux exiv2-0.23]$ exif  ~/0_71669_fa7746c8_orig.jpg
EXIF tags in '/home/Wani/0_71669_fa7746c8_orig.jpg' ('Intel' byte order):
--------------------+----------------------------------------------------------
Tag                 |Value
--------------------+----------------------------------------------------------
Image Width         |7773
Image Length        |3925
Bits per Sample     |8, 8, 8
Photometric Interpre|RGB
Manufacturer        |Canon
Model               |Canon EOS 400D DIGITAL
Orientation         |Top-left
Samples per Pixel   |3
X-Resolution        |240.0000
Y-Resolution        |240.0000
Resolution Unit     |Inch
Software            |Adobe Photoshop CS5 Windows
Date and Time       |2012:06:17 23:09:56
Artist              |unknown
Exposure Time       |1/160 sec.
F-Number            |f/7.1
Exposure Program    |Manual
ISO Speed Ratings   |100
Exif Version        |Exif Version 2.21
Date and Time (Origi|2012:06:12 13:12:47
Date and Time (Digit|2012:06:12 13:12:47
Shutter Speed       |7.32 EV (1/159 sec.)
Aperture            |5.66 EV (f/7.1)
Exposure Bias       |0.00 EV
Maximum Aperture Val|4.00 EV (f/4.0)
Metering Mode       |Pattern
Flash               |Flash did not fire, compulsory flash mode
Focal Length        |17.0 mm
Color Space         |sRGB
Pixel X Dimension   |2237
Pixel Y Dimension   |1080
Focal Plane X-Resolu|4433.295
Focal Plane Y-Resolu|4453.608
Focal Plane Resoluti|Inch
Custom Rendered     |Normal process
Exposure Mode       |Manual exposure
White Balance       |Auto white balance
Scene Capture Type  |Standard
FlashPixVersion     |FlashPix Version 1.0
--------------------+----------------------------------------------------------
[Wani@Linux exiv2-0.23]$