Canon and Nikon both made some great Brightline finder with correction years back. Are you using the frame lines on a Bessa or an external VF? If it's an external could it have been damaged (read dropped before you got her?)? If it's internal do you have the same problem with other lenses up close?
Have you done the 3 foot edge test? Get a tripod and mount your camera on it. One the wall put a large set of papers covering about four feet tall and five feet wide. Put the camera, tripod in the middle of it and focus to three feet (or so, just really close). You may want to put a little cross in the middle where you focus on. Put small marks at the edges of your frame in a dark color and then mark every half inch from there on both the X and Y (up, down, left, right) axis say about four inches from the corner.
This should give you an idea of how far you are off. Do this with your 85 and a 50. Just for giggles do it on a 35 too.
That close up it might be a combination of things that have thrown you off.