Photo Film Before digital cameras were invented, people had to use film to take photos. You needed to put a roll of film inside your camera before you could start taking pictures. Each roll could usually hold 24 or 36 pictures. After you took all the
pictures on the roll, you had to take it to a special photo lab where they put the film in special liquids and printed your photos for you. You couldn’t take as many pictures as quickly as you can today.
lab: n. special room or building with equipment to do something specific like science
Unit 6
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