I have a Rodenstock Doppel-Anastigmat Eurynar 135mm 3.5 I pulled off of an old folding camera and I really like the strangeness of the images. I was wondering if anyone knew of lenses that were similar to this one in other focal lengths. From what I understand it is a four element dialyte design. There is very little information out there about this lens. Any experts know of similar lenses?