The Graflex with the 135mm was the standard in the US , in Europe you had some Leica and Contax shooters as well as the Rolleiflex and a few Ermanox cameras. The main cameras from the late forties on was as far as I know the Rolleiflex. The Graflex, MPP and other lf cameras were used by a few photographers but were not used that much by euro photojournalists.