I have a working FED 5C that I like to use, however, I did discover that the viewfinder framelines do not match what's in the actual frame. I used ground glass on the film plane to compare the field of view and the framelines are offset to the left. I realised that you can effectively adjust them to the right by tilting the whole of the viewfinder glas but unfortunately this throws the rangefinder out of alignment and makes it impossible to properly calibrate it since the images will not match up.
Is there a way to make these framelines work or should I just forget about them? I like the FED 5 but now I'm wondering if I should bother with it.