Mon.–Fri., ongoing, 9 a.m.–5 p.m.
Bldg. C, Suite 260, Fort Mason Center
Presented by SFMOMA Artists Gallery, this exhibition of images by local photographer John Martin shows color portraits of San Francisco Opera company members, chorus performers, and supernumeraries in costume and in character, which he has compiled into his book, In Character: Opera Portraiture. Free, 415-447-4777, sfmoma.org