In order to save battery, many GPS-enabled cameras power their GPS receiver only once you turn on the camera. It then takes anyhwere from a couple of seconds to several minutes for the GPS to know where you currently are.
If you take a photo during this power-up phase, the camera is left with the option to use a previously recorded GPS location or forgo geotagging the photos.
At the end of the day, you will have a set of photos where some images lack geotags. This can easily be fixed with HoudahGeo.
Continue reading Fill Geotagging Gaps Left by Slow-to-Start GPS Camera
