Basically Bioneural gives a good little run down on geotagging photos on the Mac. It is a nice piece and worth a read.
I particularly enjoyed the part that said:
“One of these methods allows you to zoom in using satelite view in Google Maps to the point where you were standing—and best of all you only need to mark one photo in a set this way, and the offset will be applied to all photos in the set. Very clever:”
It was the “very clever” bit I liked!
No mention in the article of PhotoInfoEditor, which can be used to geotag photos when no GPS data is available…
PhotoInfoEditor and PhotoGPSEditor are freeware programs from MMISoftware – continued development can be supported by making donations (PhotoInfoEditor Donation | PhotoGPSEditor Donation), or purchases at the MMISoftware GPS and camera stores.
Both programs are available for download: