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P H O T O G R A P H Y C O N T E S T Sponsored by A.J. Hirsch |
Danny Kim
Honourable Mention
2006 OAPT 4U Photo Contest
Image Effectiveness of the Depth of Field
The subjected three objects in the three photographs depict the effectiveness of the depth of field by changing the distance of the object in focus, in this case, the three pool balls. The three photographs were taken with the same aperture, film speed, and shutter speed, and the aperture was set to a low value, which increased the size of the lens opening. In doing so, by focusing on a single object in the photograph, all other objects in the background and foreground surrounding was unfocused and blurred. This is called a shallow depth of field.
A shallow depth of field becomes very sensitive to pick out which object in the image is in focus. This is how this feature can best be shown. I first had to set the aperture to a low value to produce a shallow depth of field. I then used this shallow depth of field to focus one by one on the three pool balls. As you can observe, in the first photograph, the closest pool ball is in focus while the rest of the balls are out of focus. In the second photograph, the second pool ball is in focus while the other balls are out of focus. The third photograph shows the third pool ball in focus while the rest of the balls are out of focus. This is how the effectiveness of the shallow depth of field can be depicted.