I found this: http://www.keh.com/camera/Hasselblad-Prisms-and-Viewfinders/1/sku-HH139990340010?r=FE# and it sounds like something that would be very helpful to me. I am very comfortable with the 35mm style viewfinder camera, and am finding it harder to use the WLF for portraits on my 500C and 500CM. Would this benefit me? PS. I have trouble seeing at a distance, so the closer the image, the easier for me to focus.