The function of the light-tight box that forms the main structure of a camera is ______.
a. to focus light on the film
b. to prevent unwanted light from hitting the film
c. to control the time of the exposure
d. all of these are correct
e. none of these are correct
b. to prevent unwanted light from hitting the film
a. Incorrect. The lens focuses the light on the film.
b. Correct. The light-tight box, also called the camera body, is essential to prevent unwanted light from hitting the film.
c. Incorrect. The aperature controls the time of the exposure.
d. Incorrect. The light-tight box is essential to prevent unwanted light hitting the film.
e. Incorrect. The light-tight box is essential to prevent unwanted light hitting the film.
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