Why does my image look blurry when looking through the viewfinder?

Make sure that the camera’s viewfinder is clean. If that does not help, then the beamsplitter within the camera could be cracked or possibly dirty. Use the information under the Beamsplitter Hazy heading in the following guide: Kodak Signet 35 Troubleshooting.

Try to remove the top camera and check if viewfinder ,beamsplitter ,mirror rangefinder and rangefinder glass is clean , and if not try to clean with clean solution for lens.Is possible that coating of beamsplitter is gone out , and then it must be replaced.