2. What are “The Small Trades”, and what do you think this title means?

The Small Trades in Paris, London, and New York. The project began in Paris, where Penn was assisted in the selection of subjects by French Vogue editor Edmonde Charles-Roux and photographer Robert Doisneau. Penn's reflections on the tradespeople

Explanation:

changeable lenses of different focal lengths allow light to enter the camera, which then forms the image on light-sensitive film" is the one among the following statements about working principle behind a basic still camera is true.