In Singapore, it is a common practice for entire families to gather on special occasions for a formal picture, often at a studio, with the resulting image framed and prominently displayed at home. The growing tendency of younger family members to take jobs abroad, however, has left many modern portraits missing a relation or two. So the Singaporean photographer John Clang devised a solution, piggybacking on the video-calling technology that already helps ease the dislocation of separated family members