A talent for transforming the dull and the dowdy

Arnatt's work is identified by constantly shifting styles, subjects and techniques and draws heavily on art and photography history: men and women in his small Welsh home town pose unselfconsciously with ice creams, dogs and handbags, an echo of the early 20th-century portraits of August Sander; snaps of cats and dogs and the recent studies of cows and their mysterious eyes ("I wonder if cows wonder") delve into the minds of creatures whose expressions imply a philosophical curiosity.

A perpetual fascination with the ordinary extends into unprepossessing landscapes; black and white views across dowdy views of fields or lanes become elegant or intriguing, and the Miss Grace's Lane series highlights the colours and sculptural shapes waiting to be noticed alongside an unremarkable path, the evening light silhouetting spiky weeds and garnishing discarded toys and rubbish. Arnatt plays with our familiarity, but most challenging and surprisingly gorgeous are his Pictures from a Rubbish Tip. This large-format series poses the contents of a dump into painterly still-lifes, the discarded food suspended against three-dimensional backdrops created by the plastic bags, and the ivory fats and blood the colour of a medieval palette, contribute to these abstractions which evoke Turner's skies or details from a classical painting.

The show comes full circle in Notes from Jo, his wife's shouted Post-It messages which loop back to his own early protestations. This "real" photographer elevates the ordinary into something remarkable, and leaves an important mark on British photography.

Until 2 September. 020 7831 1722, www.photonet.org.uk

Keith Arnatt: I'm A Real Photographer
The Photographers' Gallery
Ramillies Street, W1F 7LW