Question Detail
Question
Which component of a camera is responsible for controlling the maximum opening to regulate the amount of light entering, often referred to as the 'f-stop'?
Correct Answer
Option C is the correct answer.
Detailed Explanation
The diagram on page 29 labels an 'Iris diaphragm or "stop"' as controlling the 'D = lens opening'. Page 32 further clarifies that 'f-stop: controls the maximum opening of the shutter. This allows the right amount of light to enter to properly expose the film, and must be adjusted for external light conditions.'
Hint
Refer to the camera diagram on page 29 and the 'Camera adjustments' section on page 32, specifically 'f-stop'.