Quote Originally Posted by Scott Knowles View Post
I didn't fully identify the lens I have and the latest Schneider Symmar-L APO lenses in their catalog show the larger rear group. I've attached a photo of it mounted on the Horseman lensboard. I hope this helps. I also plan to find another 150/180mm lens for the Horseman which will work.
Yup, that is a 180mm Apo-Symmar L. The "L" is located behind the focal length on the inscription, not after the "Apo-Symmar".