PELLE CASS: TOSSED Cass’s time-lapse photographs gather hours of activity into a single still image. In one series, scores of balls (and in one case, apples) fly through the air, arcing and hovering. To make each, the artist set a camera near the ground and threw objects into the air again and again. Then he consolidated all that motion into one frame, bustling and buoyant with activity. Through May 17. Praise Shadows Art Gallery, 313A Harvard St., Brookline. 617-487-5427, www.praiseshadows.com
