the exhibition is "Picturing New York: Photographs from MOMA". It runs until the 7th of Feburary in Kilmainham
Dropped in to this today. It's really great. I didn't get to study it in detail because I was being dragged around the place by my four-year old daughter. "Pictures are boring!" she announced loudly at one point.
Anyway it's got all the greats - Hine, Steiglitz, Arbus, Friedlander, Winogrand, Weegee, Strand - you get the idea.