From an artist's statement by Edward Weston for an exhibit in 1930: "The photographs exhibited, with the exception of the portrait studies, are contact prints from direct 8x10 negatives, made with a rectilinear lens costing $5, . . ." The Rapid Rectilinear lens was designed in 1866, and was obsolete long before this exhibit. Weston did use some state-of-the-art lenses, but was more interested in results than equipment.