Discovering that what could be perceived on the tape did not correspond to what was perceived on the screen (a hole where there is nothing cannot normally become a line), this led me to compose films frame by frame in the camera while shooting. The Bolex cameras I use have many possibilities. As long as you have a way of immediately noting the recorded images, the technical means of the Bolex make it possible to film images at different places on a roll of film in a given place and at a given time, and then to go back and film in another place the parts of the roll that are not yet exposed. The implications of the techniques of filming-editing in camera associated with my attention to the natural environment, close or sometimes far from where I live, the Vaucluse, are exposed here in my films Roulement, rouerie, aubage (1978), Voiliers et coquelicots (2001), Jardin du sel (2011), and Tartarughe d’Acqua (2016).