When Monet painted the
Rouen Cathedral series, he had long since been impressed with the way light imparts to a subject a distinctly different character at different times of the day and the year and as atmospheric conditions change. For Monet, the effects of light on a subject became as important as the subject itself. Like his other series (such as the famous
Water Lilies) in which Monet painted many views of the same subject under different lighting conditions, these works are an attempt to illustrate the importance of light in our perception of a subject at a given time and place. He spent much of his career in attempts to capture these nuances, as exemplified by his frequent saying, "Nature never stands still." Image:Claude Monet - La Cathédrale de Rouen, Le Portail au Soleil.jpg|
Rouen Cathedral, West Façade, Sunlight1894
National Gallery of ArtWashington, D.C., USA File:RouenCathedralSerbia05.jpg|
Rouen Cathedral, red, Sunlight1892
National Museum of SerbiaBelgrade, Serbia Image:Claude Monet - Cathédrale de Rouen. Harmonie bleue et or.jpg|
La Cathédrale de Rouen. Le portail et la tour Saint-Romain, plein soleil; harmonie bleue et or1892–1893
Musée d'OrsayParis, France Image:Claude Monet - Cathédrale de Rouen. Harmonie bleue.jpg|
La Cathédrale de Rouen. Le portail, soleil matinal; harmonie bleue1892–1893
Musée d'OrsayParis, France Image:Claude Monet - Rouen Cathedral, Facade (Sunset).JPG|
Rouen Cathedral, Facade (sunset), harmonie in gold and blue1892–1894
Musée Marmottan MonetParis, France Robert Pelfrey, in
Art and Mass Media, wrote: "By focusing on the same subject through a whole series of paintings, Monet was able to concentrate on recording visual sensations themselves. The subjects did not change, but the visual sensations – due to changing conditions of light – changed constantly." The cathedral series was not Monet's first series of paintings of a single subject, but it was his most exhaustive. The subject matter was a change, however, for prior to this series, Monet had painted mostly landscapes. The cathedral allowed him to highlight the paradox between a seemingly permanent, solid structure and the ever-changing light which constantly plays with our perception of it. There were calls for the state to buy the entire series and exhibit them as a whole, but these calls were not heeded and the series was divided. ==Technique==