Aperture: For shadow photography, use a large aperture (f/8 or greater). This helps reduce background blur and chromatic aberration caused by shooting into a light source. Shutter speed: In shadow photography, darken the subject by using a fast shutter speed that limits light. Start with 1/125 for stationary subjects and adjust as needed. ISO: For darker shadow photographs, set your ISO low. Also, High ISO adds noise and graininess, especially noticeable in black colors. Keep ISO between 100-200.