One of the best tech secrets of modern photography is the ability to never have to write down in a little notebook where you were when you took a photo in order to remember later. Many folks have GPSes in their car, but they aren’t only for getting directions from place to place. A GPS device can also record the very place you were standing when you took a photograph, and save it into your camera’s EXIF data. For those that spend time traveling and chasing trains, a GPS is extremely useful. Photos that have GPS data recorded are known as “geotagged” – and to the modern photographer, it’s the best thing since sliced bread!
Since I’ve mentioned EXIF data, it is certainly worth mentioning this other wonderful part of modern photo. EXIF stands for EXchangeable Image File format, which is basically a way that a photo’s metadata is saved. Each photo taken with your camera has this data, which usually records the date and time the photo was taken (provided you have this set correctly in your camera), the camera make and model, and the settings used to capture the photo – usually the mode setting, ISO, aperture, and exposure. In some cameras you can set specific copyrights (my camera adds my full name and website address to the EXIF data) or other messages. If you have a GPS device linked to your camera, GPS coordinates for when the shot was taken (including the altitude in some instances) are also recorded.
Getting GPS data on your camera
So how do you go about getting your camera hooked up to a GPS device? Many new cameras are coming out with GPSes built right in. One of the reasons why I fell in love with my main camera, the Canon 6D, is the built in GPS. The Sony SLT-A99, Nikon D5300, Canon 7D Mark II, Pentax K-5 IIs, and Pentax K-S1 are all examples of DSLRs with built-in GPSes. If you don’t have one of those, however, that does not mean you are out of luck. Most manufacturers make external GPS loggers that connect to your camera. The good thing about these devices is that they add the GPS coordinates directly to the photo’s EXIF data. However, they cost about $200 dollars for one actually made by Nikon or Canon.