Canon EOS 5D Mark IV L-series Zoom Lens Kit Owner's Manual

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The interval (time) to update the geotag information can be set. 
Although updating the geotag information at shorter intervals will record 
more accurate location information, it will reduce the number of possible 
shots because it will drain the battery faster.
1
Check the [GPS] setting.
 
Check that [GPS] is set to [Mode 1
or [Mode 2].
2
Select [Position update intvl].
3
Set the desired update interval.
 
Select the desired update interval, 
then press <0>.
Setting the Positioning Interval
 
If you are in a location where the GPS acquisition condition is not good, 
the number of possible shots will decrease.
 
The nature of GPS may cause some inconsistency in update intervals.