One can make a simple experiment: to stand on a plain or at a shore and to look out on the horizon. The question is: where within the field of view is the horizon? Right, it is close to smack in the middle. But this exercise is not quite straightforward. When looking straight out, everything close to us becomes blurry and we tend to ignore, or only half-see, the foreground. The angle of view of sharpest focus is much smaller than the overall angle of view our eyes can cover. This influences where we see the horizon and we really have to concentrate in order to see it in the middle of our overall field of view.
The above experiment also only works on a flat plain like the open sea. As soon as our position is elevated or depressed our perception of where the horizon lies changes. Where is then a good position for the horizon in a photograph? That is an excellent question and thanks for asking. Let’s think about it.(more…)