Photography is never pure its creator will always have to decide between the possibilities and limitations of the medium. But the issue will not be exclusively to find the appropriate shooting angle or a certain frame. With the formal elements of photography sweeps freezes high or low angle shots planes exposure levels to name a few the photographer will be able to underline certain aspects of the image. A photographer can exalt a politician or subjugate a common citizen and vice versa create a wiped image to better illustrate movement and so on. But it will not only be the use of the formal elements of photography that can alter the shot.
There are of course the knowledge and ignorance e-commerce photo editing prejudices or affinities of the photographer that will determine the use of photographic tools. For example lets think of a protest street meeting for photography you can choose a super wideangle lens to show the crowd and gauge the size of the contingent or a telephoto lens and focus on a very small part of the scene. All these technical and formal decisions alter the subject and the message about it. John Berger On the other hand as John Berger says The photographer chooses the event he photographs.
This choice can be understood as a cultural construction. The rejection of what he did not choose to photograph has so to speak cleared the space for that construction. The construction is the result of a reading that he makes of the event that he has before his eyes. It is this reading often intuitive and very fast that decides the choice of the instant that he will photograph. Should generate a mere testimony as neutral as possible. However in photography there is always the communicative faculty.