GeoSetter
GeoSetter was a key piece of software for me after I had a digital camera but before I had a GPS attachment or built in GPS for my digital camera.
I used it primarily to time shift photos where I forgot to change the camera clock to the location I was in and to geolocate my photos. Some photos I also established to point of view by triangle of the lens used.
Let me explain that last one more fully. If the EXIF of the photo has a fixed lens, not a zoom lens, that lens will have a fixed area of coverage which can be represented by a line down the centre of the lens straight to the scene being captured. Either side of that is a right angle triangle whose angle depends on the lens in use. The triangle each side of the centre line is represented by a flat cone. Using the images of the map you can locate the edge of the photo, and therefore the edge of the cone. Repeat for the other side of the photo and you have established two points of the triangle. With those two points fixed and the angle fixed, it becomes apparent where the camera was to produce that photo, provided it has not been cropped.
