From 1914, Oskar Barnack (1879–1936), the inventor of the Leica, used the prototype camera he developed, today known as the Ur-Leica, for photography. He captured various events in entire series of photographs and became one of the earliest photographers to document the relationships between man and the environment.
I am not sure but I think the answer might be B: (light meter, aperture, exposure) because they can either photoshop and or use different filters and edit with certain apps.
