Canon GP-E2 Manual De Instrucciones página 42

Features
With the EOS 7D, you cannot append the shooting direction data to the
images. (It cannot use the receiver's digital compass.)
With certain cameras other than the EOS 7D, you also cannot append
the shooting direction data to the images. (They cannot use the
receiver's digital compass.) For details, refer to the camera's instruction
manual or Canon Web site.
Some traveling conditions, locations, or receiver settings may cause
inaccurate location information to be added to images.
You cannot use the cameras with the GP-E2 connected using the
connecting cable if they do not support the communication with the
connecting cable. Refer to the camera's instruction manual or Canon
Web site for details.
Coordinated Universal Time, abbreviated UTC, is essentially the same as
Greenwich Mean Time.
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