The answer is that in each photograph the depth of field (DOF) has changed, so different amounts of the frame are in focus.
We can control the depth of field by adjusting the aperture of our camera. If you think of the camera like an eye, the aperture controls the size of the pupil and therefore how much light enters the camera, which in turn affects the depth of field |
Task 1:
Watch the video and write down notes on aperture and about how it affects your camera. Task 2:
In pairs choose three objects to photograph. The objects should be placed in a line like in the example below equally spaced apart. |
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Task 3:
Green (grade 1-3) - Set the camera to the aperture setting (AV). - Find the aperture settings on the camera, and take 3 photographs of the same composition, each with a different aperture to show the change in the depth of field. - Start with the aperture set to f/2.8 or the lowest setting - Move up to f/11 for the second - Change to f/22 for the third Amber (grade 4-5)
- Set the camera to the aperture setting (AV). - Find the aperture settings on the camera, and take 6 photographs of the same composition, going from a low aperture to a high aperture. - Be sure to write down all of the apertures you take your photos at so that you can caption them later with the settings you used. |