Densité Optique I (Optical Density I) mark a chromatic decomposition of the image. The choice to show a scrolling film movie as an extreme slow motion, frame by frame voluntarily directs the gaze on the work of the image. This aesthetic can remember those photographs retouched by painting. However, this type of image is obtained by a chemical decomposition of the film emulsion. Indeed, it is composed of three colored layers deposited on a transparent plastic substrate. Light passing through these layers is tinged with the colors and optical density, recreates the images and colors of the frames. Certain mixtures of chemistries acids attack these layers in the decolorizer, diluting in different aspects. 　　（光学密度I）标志着图像的彩色分解。选择将滚动电影作为一种极慢的动作，一帧一帧地自动将视线引导到图像的工作上。这种审美可以记住那些经过绘画修饰的照片。然而，这类图像是通过薄膜乳剂的化学分解获得的。实际上，它是由沉积在透明塑料基板上的三层彩色层组成的。穿过这些层的光线带有色彩和光密度，重现了画面的图像和色彩。某些化学混合物酸会侵蚀脱色剂中的这些层，在不同方面进行稀释。