This is the Garmin hand-held unit I chose and ordered. I will output the track files and combine with Photo Mechanic to enter the GPS data into the EXIF Canon Files.

I also ordered a small unit that fits on top of the camera that outputs a log. I am going to test them against each other.

The Garmin eTrax Vista HCx unit I chose has an excellent reputation and the reviews are positive. It includes altitude in the track logs. (which could be positive or negative)

http://tinyurl.com/qrc7xo

If you are a Nikon shooter – Nikon makes a GPS add-on for your cameras. Nikon has a plug that GPS units can connect to the camera and the data is written to the files. Canon makes you jump through an extra hoop plus expense of adding the wireless transmitter for the 1Ds III or 5D II.

This is the GEOPIC. Rated very well for Fuji and Nikon cameras.

http://tinyurl.com/q5to39

Plug from GPS Units to Nikon Camera

http://tinyurl.com/q9z2w9

ARTICLE on the BH Photo web site about GEOTAGGING

http://tinyurl.com/pqjyvq

NIKON branded GPS

http://tinyurl.com/ql37jk

JOBO Unit that will fire from any camera. (reviews are good and bad)

http://tinyurl.com/qb4w6h

HASSELBLAD GPS UNIT for H cameras.

http://tinyurl.com/qrodfn

Gisteq Photo Tracker is less expensive than the JOBO and the reviews of the new unit are very favorable. I ordered this unit from Amazon.

http://tinyurl.com/pmcqzp

If you are a Nikon user, you are pretty much good to go with plug-in-play units. For Canon users, you need to use Photo Mechanic to bring the data from an outside file into your RAW files or purchase the wireless transmitters in order to plug in a GPS unit that will write to the camera files as when shot. Roughly $700 for the 1Ds III and $900 for the 5D II.

Photo Mechanic 4.6 will write combine the data so it is readable in Photo Mechanic and can be placed in your caption info or any field you choose. Version 4.6.1 will write it so it can be read by any software program that can display EXIF data.

http://www.camerabits.com/site/index.html