Many of us have asked this question over the years. Obviously if you have little pictures at very recognizable events, there is not a big problem. But the old shoeboxes with pictures will tell you differently. How many pictures do you have in these boxes (“I will put them in an album, I promise!”) of which you don’t even remember taking them?

Ok, there has always been this method: simply write down where you took your pictures and be done with it. Just look in these old shoeboxes. The proof is in there, somewhere…

A tree, somewhere in the wide wide world. But where? A tree, somewhere in the wide wide world. But where?

Nowadays we have different tools to get us through this chore of adding information to our pictures. The first one is Lightroom from Abobe, the second …

Well, first things first. In order to tag your pictures effectively, you will need some sort of device that will record your position here on Earth. Such devices are called GPS, for Global Positioning System. Many of us have one in our car called TomTom, JohnJohn or other. They tell us where we have to turn and stop when we have arrived. These devices are rather costly and totally inefficient for us, photographers. Others will have an iPhone and may be lucky already.

I used a small device like this:

RoyalTek RGM-3800 Datalogger RoyalTek RGM-3800 Datalogger

This little device I bought online from Semsons is called a DataLogger. Switched on, it records date+time+position at a regular interval. I always use it at a one second interval, after all, I never know in advance when I will be taking pictures. I switch it on when leaving home, stuff it in my camera bag and forget about it all day. Batteries (2 AAAs) will last about a day.

Returning home, I download the data from the datalogger to my computer with the included USB cable. The files are standard text files, although the data inside is rather indigestive and should not be read by humans. We have programs for that.

Then comes the “magical” part. Your camera always records date and time for every picture it takes. If you combine this date+time with the date+time+position of the datalogger, then you get date+time+position for every picture you have taken during that day. This process is called “GeoTagging”, it tags your pictures with GeoPositioning information.

Geosetter Geosetter

The program to do this (on PC) is called GeoSetter and is freely available from GeoSetter by Friedemann Schmidt. This program will take the data files from the datalogger and compares it with the date+time from each picture. Every picture will now get some extra information that will be written away in the picture’s EXIF data.

I then simply import the “treated” images from that folder into Lightroom. Lightroom already knows everything about EXIF data, because it also contains shutter speed, aperture and tons of other technical information that has been recorded with each picture. In the pane for the EXIF data, we can now observe an extra line (or more, depending on the data you recorded) called GPS.

GPS info in Lightroom GPS info in Lightroom

A click on the arrow next to the GPS data will bring you to the corresponding Google Maps page for these coordinates. You can so find the exact place (of the datalogger) at the time you took that particular picture. Obviously, you should keep the datalogger with you and not leave it in the car.

After some time, I had the feeling that I could have more information with a better GPS. So I bought the Garmin Etrex Legend HCx:

 Garmin Etrex HCx Garmin Etrex HCx

This device will tell me where I am, at all time. It also (most importantly) tells me what the state of the batteries is and warns me with a signal that they are about to die. That saves me from coming home with hundreds of pictures, only to see that the data logger stopped working in the morning.

Another interesting factor of GeoSetter and dataloggers/GPS is that you can show the complete route you have taken on Google Maps. Simply record the track on your computer and tell Geosetter to make a .kml file necessary for Google Maps. Then open it and you will see your trip, plus the places where you took pictures.

A view of your tracks as seen by Google Earth A view of your tracks as seen by Google Earth

Google Earth shows you all the places where you’ve been, or at least where the datalogger has been.

Now, away from Google, Flickr will also show the places where the geotagged pictures have been taken. You have nothing specific to do for Flickr to recognize the places. It even has an extensive database with name places and will try to add the name of the place where the picture was taken.

Flickr’s attempt to name the coordinates Flickr’s attempt to name the coordinates

From now on, never a fear that in a few years I will have forgotten where the picture has been taken. Yahoo maps, Google Maps, Flickr and numerous other sites on the internet can tell me that with the precision of a few metres.

And don’t forget… the datalogger accepts only incoming signals from the GPS Satellites, it will not broadcast your position to whomever wants to know your whereabouts…