The echo has a "nostalgie de la boue" that history cannot convey; Proust was a master of the reverberating sounds of the past, ill-defined and resonant. Chris Steele-Perkins has selected here, from the fragments of a working photographer's life and the archive of a single year - 2001, and the new millenium - images that evoke his memories of that year, sentimental, odd, striking and intensely personal. Photographers create in an instant an image that is indelible - until the print fades. Memory, wilful and indiscriminate, cannot compete. But in "Echoes" Chris Steele-Perkins has combined the two by selecting images he created throughout a single year that recall his misting glimpses of 2001. Here are the Surrey hills, New York, Japan, family, Africa, home, solipsistic aide-memoires he has arranged in a chronology that combine to make, for him, a Pandora's box of his recollections of that year.