Quote Originally Posted by Rick A View Post
Open the camera back and place a piece of waxed paper over the film plane. Focus the camera through the view finder then check the "ground glass" in the back to see if they match
If the focus is off, then remove the view finder and check the screen to see if it is mounted correctly
If it is on properly then the problem may be a mirror out of alignment(doubtful) or a bad lens.
Rick, That is an excelent way to check the focus problem.

NOTE---->If the image on the film plane is out, the screen height can be adjusted to bring it in focus with the taker lens. Sometimes the viewing lens/ viewing screen, is slightly out of adjustment... but only do this if ALL your lenses are out of focus. If this is the only lens doing this, then the viewing lens or taker lens needs to be adjusted.

Sometimes people install bright screens which are focused to the camera. Then when the camera is sold they pop in the old screen without readjusting the focus.