Six photojournalists that revolutionised their craft

The storming of the Capitol; the tangled tubes of an intensive care unit; the latest snaps of the prime minister’s dog – rarely is an event (or non-event) left uncaptured by photojournalists.  

In the modern age, with a camera in every pocket, it’s never been easier to be a photojournalist. But who were the true innovators of photojournalism: those that pioneered new styles and techniques, or irreversibly altered what was acceptable to be photographed?