“It’s not that I don’t care about content,” says the American photographer James Welling, “but content is not the only way a photograph has meaning.” A master of manipulation, Welling transfigures photographs with color filters and digital tools. Imagery is layered, glaring hues wash through a scene, humans are rendered ghostly. Conventional meaning is indeed dislocated. In Welling’s hands a photograph becomes a searchlight into unknown depths of consciousness. This is his first solo exhibition in greater China. —E.C.