Thomas Ruff (born 1958) and James Welling (born 1951) are two of the most well-known photographic artists of the present day. They explore in their works the conditions of visual perception, also in relation to our use of the photographic apparatus, and the conditioning of our view of the world through photographic images. The exhibition " Dark Matter. Thomas Ruff and James Welling" and the accompanying catalog of the same name focus on works that...