Schneider-Kreuznach 150mm f5.6 Symmar-S lens for large format photography. The lens comes mounted on a Linhof-type board, Copal-0. I used it during my attempt to become a large format photographer, and it has always been mounted on this lens board. Shutter speeds are all fine, lens surfaces are also in good condition. I am not a professional camera technician, therefore, the assessment of the condition is based on my personal experience with cameras, This is a private person sale, thus, no warranty or return policy is offered.