Canon Data Back FN lens mount_Exakta This helicoid extension tube lets

This helicoid extension tube lets you seamlessly adjust magnification for close-up work with your Pentax 67 and nearly any Pentax 67 lens (not included)

Mamiya-Sekor 135mm f4

Made by a Parisian company called M

The DR-5 rotates 360 degrees and has switchable 1x/2x magnification for more precise focusing

Canon Data Back FN lens mount_Exakta This helicoid extension tube letsThe Canon Data Back FN attaches to a Canon New F 1 camera (not included) and provides basic three field data imprinting capability. The "Year" field includes years from 82 to 92, plus 0 8, a g, and I to IX. "Month" has 12 months, plus A to G, and the "Day" field has 31 numbers. In very good condition, with minor cosmetic wear. Includes box and case.