Zone of sharpness
A scene from the side: set the focus and the aperture so everything is sharp at the widest aperture, or only the subject against a soft background.
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How points are scored
- Sharpness 70
- Deep tasks: every object within the circle of confusion. Shallow tasks: the subject sharp and the background as soft as the lens allows.
- Aperture 30
- Deep tasks: the widest aperture that still keeps everything sharp is full marks, two stops narrower is zero. Shallow tasks: wide open.