It's called: Seeing Ourselves: Masterpieces of American Photography from George Eastman House Collections.
There are a couple of Adams, Weston, Stieglitz, Dorthea Lange and other interesting works on exhibit. One Weston, "Tomato Fields," and one Adams, (a valley with goats...sorry, don't remember the name), I hadn't seen before. One Componigro.
Generally the lighting is pretty good, except on the first panel, which has "Migrant Mother" and a view of Yosemite Valley by Adams. It's pretty dark, which really hurts Adams's print.