[Ziegfeld, Florenz. (1869 - 1932)] Cheney Johnston, Alfred. (1885 - 1971) Autograph Manuscript about Philosophy and Technique of PhotographyImportant 8 page handwritten manuscript document by Alfred Cheney Johnston, discussing his theories on photography as an artistic art form and including a wealth of information about his techniques, formulas, craft etc. An extraordinary document. Some selected portions: "Def. of Art: The exhibition of the power of perceiving the beautiful, and of expressing it in artistic forms. Def. of Photography: The art of producing images." "Camera can only take