Se pa da tudi ceneje pridt skoz z obstoječo kamero, ki jih dokupiš samo dodatek.
Poglej si recimo na Ebay stran kjer maš cel kup tega: http://search.ebay.com/digital-camer...tsearchZSearch

Dela pa približno takole:
Keep track of your photo locations and dates easily with satellite precision. The GPS-CS1 calculates and records position data. When used with the supplied GPS Image Tracker software, the GPS-CS1 allows you to match the time and location data in the device with your photos. And by using the Picture Motion Browser software, supplied with certain Sony cameras, your photos will be shown on an online map, giving you a whole new way to organize, manage and enjoy your pictures.