Which statement about aperture is true?

Which statement about aperture is true?

• A. It determines the color balance.
• B. It sets the camera's ISO.
• C. It is the same as shutter speed.
• D. It controls the amount of light reaching the sensor.

Answer: (D)

Aperture is the opening in the lens that controls how much light reaches the sensor. The size of this opening, described by f-stops, directly affects exposure: a larger opening (smaller f-number) lets in more light, allowing brighter images or faster shutter speeds, while a smaller opening (larger f-number) lets in less light, producing darker images and often a wider depth of field. This is why the statement about aperture controlling the amount of light reaching the sensor is true. It’s not about color balance (that relates to white balance), it doesn’t set ISO (which is sensor sensitivity), and it isn’t the same as shutter speed (which is the duration the sensor is exposed to light).

Aperture is the opening in the lens that controls how much light reaches the sensor. The size of this opening, described by f-stops, directly affects exposure: a larger opening (smaller f-number) lets in more light, allowing brighter images or faster shutter speeds, while a smaller opening (larger f-number) lets in less light, producing darker images and often a wider depth of field. This is why the statement about aperture controlling the amount of light reaching the sensor is true. It’s not about color balance (that relates to white balance), it doesn’t set ISO (which is sensor sensitivity), and it isn’t the same as shutter speed (which is the duration the sensor is exposed to light).