Question

question 19
which of the following regulates the brightness of a photograph?
a camera lens
b image sensor
c shutter speed
d focal length

Explanation:

• Option A: A camera lens primarily focuses light and affects aspects like depth of field or image sharpness, not brightness regulation.
• Option B: The image sensor captures light but doesn't directly regulate the brightness of the photograph; it converts light to an image signal.
• Option C: Shutter speed controls the duration the camera's sensor is exposed to light. A longer shutter speed allows more light in, making the photo brighter, and a shorter one less light, making it darker. So it regulates the brightness.
• Option D: Focal length is related to the magnification and angle of view of the lens, not brightness.

Answer:

C. shutter speed