The New Orleans Photo Alliance (NOPA) opens a new show Saturday night. Just outside the loop of Warehouse District White Linen Night traffic, the groups gallery (1111 St. Mary St., 909-9172) hosts a reception (6 p.m.-9 p.m.) for Elemental/Environmental: Space. The above image is Wet Beach by Dennis Staffne. A preview of the show is on the NOPA Web site. The group blog is a good source for info on local photography shows and events. The gallery is regularly open on Friday and Saturday afternoons and by appointment.