Image header data
Date	2009:09:30 15:32:10
Camera Model	Canon PowerShot SD970 IS
Firmware	N/A
Focal Length	17.7
Exposure Time	1/400
Aperture	4.5
ISO Speed	250
Exposure Mode	N/A
Metering Mode	N/A
Drive Mode	N/A
Flash Mode	N/A
Focus Mode	N/A
Focus Type	N/A
Max Aperture	4.3
Exposure Bias	-2/3
Resolution	16393.4
Resolution Unit	2