One should keep in mind, however, that different technical means lead to dif- ferent aesthetic results. In addition to the silk stockings mentioned above, diffu- sion was achieved by the use of smoke, by thin layers of grease on the lens or by specific fog filters (Salt, 1992; Smid, 2009). In contrast to shallow depth of field, it leads to a blurriness that affects the whole image, and it generates blooming highlights. So while depth-of-field separates the characters or objects from the background, diffusion engulfs everything and creates a hazy atmosphere where the figures merge with the environment. .
