Shot 3A: Stopping down
Position the subject with an object in the foreground. Make sure the object in the foreground is quite close to the camera. You set the focal length to 50mm [by default 45mm was used]. The aperture set to F11, then focus on the subject and take the shot.
As result of the average opening of the lens, the subject looks sharp and its environment as well.
Shot 3B: Stopping up
Same set up, change the aperture to F 4.5, re-focus take the shot.
This time, due to the large aperture, the subject appears sharp but the poor death of field leads to a quite blurry background and foreground.
Shot 4A: Stopping down
Set the focal length of the lens to70 mm[by default 45mm was used],frame your subject from the shoulders up and ask them to stretch out their arm with the palm of their hand facing the camera fingers spread open, obscuring their face . Set aperture to F11, focus on the hand, and take the shot.
As result of the average aperture, depth of field is good, the subject and the palm of the hand appear sharp and the background quite sharp. Task 4- 4
Shot 4B: Stopping up
Same set up, re-set aperture to F4.5, re-focus on the hand, and take the shot. In this case where the lens opening is large the depth of field is less, thus the subject and the palm of the hand appear sharp, but the background quite blurry.