just remember, 1 shutter speed lower is equivalent to equivalent to 1 lens f-stop smaller

1 shutter speed = 1 aperture, with regards to light hitting the film

For broad daylight photo taking, set your shutter speed to the speed of the film you're using (or as close to it as you can) and set the lens setting to 16 and you're good to go. clouds or a little darker, set it to f8 or f11