Group 64 limits its members and invitational names to those workers who are striving to define photography as an art-form by a simple and direct presentation through purely photographic methods. The Group will show no work at any time that does not conform to its standards of pure photography. Pure photography is defined as possessing no qualities of , composition or ideas, derivative of any other art-form. The production of the "Pictorialist," on the other hand, indicates a devotion to principles of art, which are directly related to painting and the graphic arts. The members of Group 64 believe that Photography, as an art-form, must develop along lines defined by the actualities and limitations of the photographic medium, and must always remain independent of ideological conventions of art and aesthetics that are reminiscent of a period of culture antedating the growth of the medium itself.