Sayuri Ichida spent years photographing her sister after their mother died. Then she refused to let a computer anywhere near the results, hand-printing every image using a 150-year-old etching process instead

Two of Sayuri Ichida's monochrome photographs of her sister.

There's a particular kind of exhibition that makes you want to put your camera down for a minute and think about what you're actually trying to do with it. Playing the Piano Upstairs, which has just opened at the Print Sales Gallery, inside The Photographers' Gallery in London, is one of those shows.

On the surface, it's about a photographer's relationship with her sister, built and rebuilt in the years after their mother died. But for anyone who spends their weekends fussing over exposure and grain, what's most interesting is what Ichida did after she put her camera away.