Response to Enlarger misalignment

I'm not familiar with the Durst Graduate, but if it is a condenser enlarger you might want to adjust the various condensor lenses inside to make sure you are getting an even spread of illumination. In your later post you say you are using 35mm film and a 50mm lens, which is the normal focal length. Are you stopping the lens down? If everything is properly aligned, and the Rodenstock lens is stopped down (it will be sharpest in its mid-range), you should have perfect focus from corner to corner. Is the lens in good condition, clean and free of haze?

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