Hello! I'm a swedish amateur photographer using a lot of different cameras. Recently I have been using my digital Leica a lot which is good for documentation but when making a picture for it's own qualities and pure joy nothing beats film, a large square negative and a few hours with some good music in the darkroom. So I dusted of my Hasseblads and put a 553 ELX on a tripod just to find that the standard -1 diopter in the folding waist level viewfinder was not appropriate for me any longer. A +1 diopter was much better but still nothing was sharp at infinity. My prescription is sph + 0.75 cyl -0.50 (long distance). Which diopter should I use in the waist level finder and which one is the suitable for the PME-5 finder? If possible I would like to avoid using glasses when framing and focusing.