Hi I am trying to work out the exact settings on my fuji finepix s9600 camera to take pics of a diamond ring. I have looked online and in books and I am advised to have an ISO setting of 100 and an F setting of 14 with the dial setting to A. Ensure the ring is between 5 and 11 inches from the lens in a lightbox. This and many many alternative adjustments I have tried with poor results. Can anyone please advise me? Many thanks