Went to the exhibition yday- it's absolutely fantastic. Some extremely compelling images which made me appreciate the skill and genius of these photographers more than before. Kertesz's polaroids and Brassai's night shots of Paris were real highlights for me. The big find for me though was Martin Munkácsi - I must confess I'd never heard of him, but his images were on a par with Kertesz, Capa and Brassai.
Highly recommend a visit