If you are really quick you will catch the following exhibition.
Eyewitness: Hungarian Photography in the 20th Century
30 June—2 October 2011
In the Sackler Wing of Galleries (Royal Academy – Piccadilly)
Brassaï, Robert Capa, André Kertész, László Moholy-Nagy and Martin Munkácsi each left Hungary to make their names in Germany, France and the USA, and are now known for the profound changes they brought about in photojournalism, as well as abstract, fashion and art photography.