"It’s all photography." (Jeff Wall)
I first heard of Wall in Sontag's Regarding the Pain of Others where in the very final pages she lauds his 1992 work "Dead Troops Talk (A Vision After an Ambush of a Red Army Patrol Near Moqor, Afghanistan, 1986)" as"exemplary in its thoughtfulness and power." In the work, a dozen or so dead Soviet soldiers scattered on a desolate landscape, apparantly talk among themselves, oblivious to we who still inhabit the realm of the living.
It is unsurprrising that Sontag would find this work especially to her liking since Wall is (here and, as The Times article makes clear, elsewhere) inspired less by photography than by painting. Sontag characterizes this image as "the antithesis of the document." For her, and perhaps for Wall as well, reliance on photographic technology seems to be an inconvenient historical necessity.
PS: There was a review of the exhibition of Wall's work that just opened at the MoMA in NYC in The Times yesterday - here.