Question

With a 50 mm lens when you change aperture from 2.8 to 8, the depth of field of the image will:

• A. Increase
• B. Decrease
• C. Remain unchanged
• D. None of the above

Hint:

Higher f-number → more depth of field. Lower f-number → shallow depth of field.

Answer 1

The Correct Option is A

Step 1: Understanding aperture and depth of field.
The aperture controls how much light enters the lens, also affecting the depth of field (the sharp area in focus).
Step 2: Explanation.
Smaller aperture (higher f-number like f/8) increases the depth of field, keeping more objects in focus.
Step 3: Conclusion.
Thus, when changing aperture from f/2.8 to f/8, the depth of field increases.