Since 1994, Uta Barth (born 1958 in Berlin, lives and works in Los Angeles) has been creating series of photographs which consist of blurred images generated by focussing the camera on an unoccupied foreground - the absence of subjects referring to the function of images as containers of information and the role of the viewer in reading that information. In these two photographs, taken at the Tate Modern, London under construction, architectural details, reflections on their surfaces and the absence of subjects create a diptych of unframed, empty but lushly seductive images.