Pelle Cass is a street photographer—sort of. Since 2008, he’s been taking his camera and tripod to public plazas and tourist hubs in Boston, New York, and other major cities, where, over the course of an hour or more, he takes several hundred photos of a fixed point. Back in the editing room, he spends anywhere from 20 to 80 hours Photoshopping a single image, finding, masking, and layering the people that make it into the final frame—a “still time-lapse” of an urban afternoon. In the series “Selected People,” no…
