What brands of camera have been used by the portrait photographer Annie Leibovitz?

Annie Leibovitz has used many camera during her long career, including the Hasselblad 6x6 medium format and the Mamiya RZ-67.

Although both cameras use the same size 120/220 roll film, the Hasselblad produces square 6x6cm images on film, while the Mamiya RZ-67 produces 6x7cm rectangular images.

To answer your question Annie currently shoots only digitally. On commercial jobs she brings along with her three different cameras and two of each. Usually she arrives with a Nikon D3, a Canon EOS 1Ds Mark III or a Canon 5D Mark II, as well as a Hasselblad H2D with a 20+ back. In her personal life she chooses to shoot with either a Leica D-Lux3 or a Canon G10.