questionedithistorytranslationsWhich resource used to be greatly consumed by the photo processing industry before the age of digital photography?oil992silver7278cadmium3732zinc1589Photography used 31% of the silver consumed in 1998. By 2010, it dropped to 7%.Share and bring new players to the game!correct this questionJason Beagleyreach: rather globalchemistryhistory of photographyphotographyTravis HornungPhotography quizChemistry quizWhy were photographic prints sepia toned?For improved resistance. Sepia toning enhances archival qualities of the photos. Chemicals are used to convert the metallic silver in the print to a sulfide compound, which is at least 50% more stable than silver.What kind of furniture was specifically made for photographers in the mid-19th century?Tables. The heavy specialized tables known as "Broody stands" were factory-made to keep models steady during the long exposure times. The table typically had a weighty cast iron base for stability, plus an adjustable-height pipe leg for use as either a model's armrest or neckrest.In which year was the earliest surviving photograph created?C. 1826. Although Nicéphore Niépce took the first fixed, permanent photograph in 1822, it was later destroyed. The earliest surviving photograph by him is dated c. 1826 and is called 'View from the Window at Le Gras' (La cour du domaine du Gras). The image was created at Saint-Loup-de-Varennes and it captures the roof and surrounding countryside of the estate - Le Gras.Which of the following camera lenses are typically more expensive?F/1.8. The smaller the f-number, the larger relative aperture there is, and that means more light for the exposure. Each aperture has half the light gathering area of the previous one.
