The First Photograph
Enhanced version by Helmut Gersheim (1913–1995), performed ca. 1952, of Niépce's View from the Window at Le Gras, (Harry Ransom Humanities Research Center, University of Texas, Austin), the first successful permanent photograph created by Nicéphore Niépce in 1826 or 1827, in Saint-Loup-de-Varennes (Saône-et-Loire, Bourgogne, France). Captured on 20×25 cm oil-treated bitumen. Due to the 8-hour exposure, the buildings are illuminated by the sun from both right and left.
What is Microfilm?
When you can't find published primary sources, you may be able to get ahold of electronic or microfilm copies
Much archival primary source material has been filmed over the years, but using it will take some getting used to. Ask for help with microfilm, microfiche, or microcards at a reference desk!
A sense of what it is and how you use it