An experienced darkroom printer, in 2013 Sun Yanchu started to experiment with chemical paintings on photographic paper. Incorporating chinese ink brush techniques and traditional darkroom processes, Sun Yanchu controls the liquid, temperature, light exposure and developing process to create this series of developer paintings. Layers of black and grays resemble traditional Chinese ink painting and calligraphy, which the artist has been exposed to since childhood. Developer paintings are a mixture of Sun’s passion for traditional Chinese art and the technical, experimental, time and chance elements inherent in photography.