Trackstick II looks like a product worth investing in for this project.
There seem to be several approaches to geocoding photos maturing on the market. As a purely software solution, RoboGeo, is in version 5. Using GPS gadgets there are two ways of capturing geocoded location data. One approach collects data continuously. The other does so at preset intervals or on command. The former is probably more relevant to video or to trail plotting than to geo-tagging still photos.
For matching photos to location it is necessary to enable timestamping in the camera and - very importantly for accurate placement - make sure that the GPS gadget and camera clocks are synchronized! Following a photo shoot the data collected by both gadget and camera are transferred to a computer and processed. They are written to a file readable by tools like Google Earth (Archane geekiness for extra points: EXIF, KML.)
Several online sources feature, but few critically review, Trackstick II. Here are a few reviews at
- New Davincis.com
- Spy Review Compares it to Trackstick I and III
- Simple Thoughts Compares it to Tracking Key GPS
Sony GPS CS-1 at
Globalsat DG-100 GPS at
GPS Slim at
Whatever the gadget, eventually the photo geocoding process leads back to data transfer and Google Earth, Google Maps, and other tools like Picassa.
Key product features to consider are:
- Signal reception capacity/Accuracy of data
- Battery life
- Ruggedization
- OS compatability (Windows, Mac)
- Ease of use of supplied data transfer & geocoding software
- Storage capacity
Given the incomplete information I am drawn to the Trackstick II or III or the Globalsat DG-100 GPS. With the latter two difficult to find, Trackstick II seems a safe purchase.