Wondered if I could get advice on what strength diopter lens to buy for my X-Pro1. I have no problems seeing the hybrid display when using the OVF, but the EVF image is very fuzzy. FYI I am near-sighted and have fairly strong prescription glasses for seeing far objects. I have always used my glasses for shooting, and the X-Pro 1 is the first camera I have owned in a long while without built-in diopter correction in the viewfinder. The EVF image comes into focus when I move my eye about 2 inches back from the viewfinder---is this a plus or minus diopter? Thanks.