I finaly did some more "try it and see" tests and found out a couple of things.
The pinhoe used in conjunction with the camera lens is best.
The smaller the pinhole the less sharp the image becomes.
My thaught was that a smaller pinhole gives a sharper image but not so. The camera being used is a 4x5 and the pinhole is .018 or .020 aprox, brass shim stock blackened with a solution stained glass workers use to patina the leadding.
The film being used is Kodak T max 400, exposures are quite fast, 1/2 -1 sec in sun, 10 sec in shade. when I get someone to post the pictures you can see some examples. (I am computer illitteriate...)