Pictures from the SX-70, by contrast, ejected automatically and developed quickly without chemical residue. Polaroid founder Edwin H. Land announced the SX-70 at a company annual meeting in April 1972. On stage, he took out a folded SX-70 from his suit coat pocket and in ten seconds took five pictures, both actions impossible with previous Land Cameras. The company first sold the SX-70 in Miami, Florida in late 1972, and began selling it nationally in fall 1973.