This is a quick tip related to something that I just tried today and that worked.
My camera SONY DSC-HX100V has GPS capability built-in but it won't work everywhere and it needs some time to acquire the satellite signal. This way if you just want to take a quick snap you may end with photos that don’t have GPS location in their Exif metadata. GPS is a recent capability when we talk about cameras.
Taking that into consideration, let’s say you have some photos in iPhoto (Mac OS) or whatever program you use to manage your photos. I mention iPhoto here since it’s the app I use. Those photos don't have a location set due to no GPS signal available where the photos were taken. So how can one add that missing GPS location info/data on those photos? By the way, this process is called geotagging.
This is what I’ve tried and what worked perfectly in my case:
1 - Open Google Maps and find the place/point where you’ve taken the photos.
2 - Right click that place/point you want in the map and select Center Map here.
3 - Click the Link button. Black mouse pointer is over it in the screenshot bellow.
A popup box will open. Copy the text/URL and paste it in your preferred text editor app. The link will look something like this:
http://maps.google.com/maps/ms?msid=201266260819946046546.0004a0e1b939dec67f18e&msa=0&ll=-22.428568,-44.619633&spn=0.001983,0.004128
Pay attention to the highlighted part that correspond to the longitude and latitude data.
4 - Select the photos you want in iPhoto to apply Location information and press command+I to access the Assign a Place box. Copy the highlighted text above and paste it in the box. Press the enter key to finish the task.
This procedure works great when you just want to add GPS coordinates in your photos no matter if your camera has a built-in GPS or not since any photo can be geotagged nowadays.
Hope it helps!
You can check my photos in this slideshow:
