moving photo

         Pick a position where there is plenty of light and, if the sun is out, try and get it shining into the runner’s face. Not from the side and not shining into the camera lens.Set the camera to Aperture Priority (Av) and set to the lowest F number possible. This will give you the widest aperture to let in the maximum amount of light. Some lenses will go down to F1.4 others won’t go lower than about F6 on full zoom. Note: the larger the aperture (smallest F number), the less depth of field in focus.   Set the ISO to the lowest setting (probably 50 or 100). The lower the ISO the clearer the picture. The higher the ISO the grainier the picture.