Vintage Lens Re-housing, Super-Multi-Coated Takumar 55mm f1.8

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This custom lens housing is optimized for "Super-Multi-Coated TAKUMAR 55mm f/1.8" The Takuma 55mm f1.8 lens was released in nine versions from 1958 to 1975. Their optical design and structure are almost the same, but there is a small difference in appearance size. This housing has not been tested to see if it can be properly mounted on lenses other than "Super-Multi-Coated TAKUMAR 55mm f / 1.8". For more information on the lens, please refer to the link below. https://www.pentaxforums.com/lensreviews/SMC-S-M-C-Super-Auto-Takumar-55mm-F1.8.html It is designed to be fixed with grub screws(M4 x 4mm) to prevent incomplete mounting of the housing due to 3D printing material problems. And the front filter adapter (49-82mm step-up ring) also serves to secure the housing front element. The focus ring and aperture ring are designed with a 0.8M standardized gear ratio (outer diameter 100mm 123T) suitable for general follow focus gear.