The document discusses different camera settings used to capture sharp images with clear subjects and details. For action shots, the photographer increased the shutter speed to 1/640 sec to reduce blur from moving subjects. Higher shutter speeds of 1/640 sec were also used for low angle shots, shallow depths of field, and when the lighting was too bright, to maintain crisp, detailed images focused on the intended subject. A high aperture was chosen to achieve a shallow depth of field with the main part of an image in focus.