I have a 798 ci-hd-si, have not seen good pictures on it yet except hard objects, was wondering if a 5 inch screen, set at 50 feet which would equal to 10 feet to the inch,and a 7 inch set at 70 feet which is still 10 feet to inch;would for the first 5 inches on screen show the same detail,same size or what ? The reason is I see great picture on here but as best I can tell they are not the 5 inch screen. I know some will say should have got a bigger unit but that is not the point now. Also ,if possible ,would like to see some pictures on 5 inch screen and how they set them. P.S.what I would like to see is brush and, or fish. Also DI on 5 inch 798 units, thanks, hope I didn't pay this much for nothing, but feel it is me and not the unit