Photo / Exif

David Ucko, Division Director (Acting), DRL, NSF Outlines the History of the Field

What is Exif data?

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, and we read and display it here.

Dates

Taken on	March 3, 2010 at 9.17PM PDT
Posted to Flickr	March 4, 2010 at 6.27AM PDT

Exif data

Camera	Canon PowerShot SD700 IS
Exposure	0.077 sec (1/13)
Aperture	f/5.5
Focal Length	23.2 mm
Exposure Bias	-2/3 EV
Flash	Off, Did not fire
Compression	JPEG (old-style)
Orientation	Rotate 90 CW
X-Resolution	180 dpi
Y-Resolution	180 dpi
Date and Time (Modified)	2010:03:03 21:17:09
YCbCr Positioning	Centered
Date and Time (Original)	2010:03:03 21:17:09
Date and Time (Digitized)	2010:03:03 21:17:09
Compressed Bits Per Pixel	5
Max Aperture Value	5.5
Metering Mode	Multi-segment
Color Space	sRGB
Focal Plane X-Resolution	12515.55556 dpi
Focal Plane Y-Resolution	12497.04142 dpi
Sensing Method	One-chip color area
Custom Rendered	Normal
Exposure Mode	Manual
White Balance	Manual
Digital Zoom Ratio	1
Scene Capture Type	Standard
Related Image Width	2816
Related Image Height	2112