I want to know the answer to the following question:
Who presented the idea that grew into the DIN?
All the background I'm provided with is that "It grew out of drafts for a standardized method of sensitometry put forward by Deutscher Normenausschuß für Phototechnik as proposed by the committee for sensitometry of the Deutsche Gesellschaft für photographische Forschung since 1930 and presented by Robert Luther (de) (1868–1945) and Emanuel Goldberg (1881–1970) at the influential VIII.". Is that enough to answer the question?