Rock photographers Janet Macoska and Mo Gray present a 40-year retrospective that’s entirely for sale at 50 bucks a pop. Each photo is a vintage hand-printed 11x14-inch silver gelatin print. The fun includes a DJ, drinks, food — and a much-needed vacation for the two photographers if they move enough of their work. It all happens from 5:30 to 9 p.m. Friday, May 11, at 10717 Detroit Ave. Learn more at Macoska’s Facebook page.