On a recent trip (house hunting in AZ) I had occasion to take hundreds of pictures of homes. I used my GPS to embed the geo-tag information into the images as mentioned in this blog (Photo Management – Geo Tags update). This real-world example of using the GPS and geo-tagged images shows how useful the information can be to help with your post-trip analysis of the data.
Several benefits of the geo-data included:
- Documenting time and date according to the GPS time when I forgot to change my camera’s internal time.
- When looking at a large volume of images it was often difficult to tell when one set ended and another started. The geo-tag information clearly shows when sets changed.
- The ability to find and sort by city was useful and powerful as implemented in iPhoto
- The ability to look at the images in a map view was nice as I reviewed home purchase options and evaluated commuting distances to work.
After using the GPS as attached to my camera I feel it’s become an essential tool in my camera bag. I really liked having the Geo-tag information and want to make sure all future images contain it.
Concerning battery life, in a previous post I was asked how much the drain on the battery changed my camera usage. The reality is that I use to take as many as 1000+ images on a single battery (1500 in some cases). With the GPS shooting over the course of the day and turning off the camera when driving to new locations, I was able to get 500+ images per battery charge. I keep several batteries just in case but the roughly 50% reduction wasn’t enough to change my desire to continue to use the GPS.