Mamiya-Sekor Z 100-200mm f/4.5 Zoom Lens This is a lens for the Mamiya RZ67 medium format film camera. *I selected the F-mount because the Mamiya mount was not an option. I think it's in good condition for an old lens, but please forgive me as it's difficult for a layman to judge things like cloudiness. I will include a part, presumably for attaching to a tripod to balance the heavy lens, as a bonus. - Brand: Mamiya-Sekor - Focal Length: 100-200mm - Maximum Aperture: f/4.5 - Type: Zoom Lens Thank you for looking.