This is a used Rodenstock lens as further described in the title and pictures. It arrived here with a lot of dust on side with the number on the enlarger mount, I got most of it off with canned air but I didn't attempt to clean the glass, don't have lens paper etc. I opened the aperture all the way up and looking through it in strong light I can see dust and possibly film on the glass. I'm pricing it accordingly. Email with any questions and thanks for looking!