The most convenient way of geocoding images is by matching them to a GPS track log file. For this you would have loaded such a track log during the first step. If the track log matches the images, HoudahGeo will already have geocoded your images. You may now verify the coordinates using the map and inspector panes.
What you are looking for in a GPS device is the
track loggingfeature: Every couple of seconds, the device records its position to a file. Pure track loggers are available for less than $100. Refer to the Frequently Asked Questions for device recommendations.
You don’t need a GPS device. Read on for other ways of geocoding your photos: using a map, using Google Earth, from reference photos, ...
