John Constable's six-foot landscapes are the focus of Tate Britain's exhibition Constable: the Great Landscapes. They are considered some of the best-known images in British art.

The purpose of the large-scale paintings, created around 1818-1819, was to honour the concept of classical landscape works.

Constable's full-scale preliminary sketches were also a significant companion to the paintings and continue to fascinate the art world today.

The exhibition includes nine pairs of sketches and paintings and some 65 works in total, including 1819's The White Horse.

Constable: the Great Landscapes is showing at the Tate Britain in London from 1 June to 28 August.