Mamiya Sekor Macro C 120mm f/4 A - Mamiya M645 Mount

The Sekor Macro C 120mm f/4 A is a high-performance macro lens for the M645 system. It is a manual focus lens capable of 1:1 life-size magnification without the need for additional spacers. The optical design is optimised for close-range corrections but performs well at infinity, making it a versatile lens for both studio work and general telephoto use. Buyers should check the long-throw focus helicoid; SDS ensures the movement is smooth across the entire range, as any stiffness can hinder precise macro adjustments. We inspect the internal elements for 'balsam separation', a known issue in some older Mamiya telephotos. The aperture pins are checked for responsiveness to ensure correct communication with the camera body.