It’s the museum made for lost Saturday afternoons. Just when you thought the V+A couldn’t get any bigger or better, down a corridor, past five galleries, through two hallways, up three flights of stairs, a new gallery has just opened. Designed by David Kohn Architects, it is one of four new galleries dedicated to photography. The collection spans from experimental silhouettes to pioneers such as Julia Margaret Cameron right up to digital imagery. The entrance to the new gallery is through an installation of 150 vintage cameras. So now there’s an excuse to get lost in the V+A on Sunday afternoons too.