Lab 2 : Aperture

Still Life

 

ISO 200  34mm  f/5  1/6sec

The subject is on focus and the background is blurry, which doesn't give us much information of it.

ISO 400  36mm  f/16  0.8sec

The subject is on focus and the background is between blurry and sharp, which gives us enough information of it.

ISO 800  36mm  f/22  0.8sec

The subject is on focus and on the background is sharp, which gives us clear information of it.

The feeling and reading of each image is different with the changes of DOF, the wider the aperture, it helps us focus on a specific element and doesn't make us look anywhere than the subject on focus. The smallest the aperture gives us a much more wider view of the subject and the surrounding. Seeing the elements sharply on the back distracts us from the subject.

Out of all three images, I feel that the first image with the widest aperture is more effective, because we want a specific focus on an element and not too much information from other details of the image.

Portrait

ISO 200  45mm  f/5.6  1/200sec

ISO 800  40mm  f/22  1/60sec

It changes the image when the aperture is wide, because the softness of the background gives a sharp focus of the person in subject than when the aperture is small, we get distracted by the details of the background. The reading of the image only makes us look on the subject with the widest aperture and the smallest aperture makes us look at the subject and then the background for information.

Architecture

ISO 800  28mm  f/18  1/3sec