3D printed AI conversion kit for NIKKOR-H Auto 28mm f/3.5 (and probably others)

thingiverse

3D printed AI conversion kit for NIKKOR-H Auto 28mm f/3.5 (and possibly other lenses as well). Simply modify the parameters and print in high-quality output. I haven't tested it on any other lens, but it works perfectly on the 28mm. The .stl file is exported a bit larger due to my printer's tendency to create slightly thicker parts. Rabbit ear modifications are also available. I recently purchased a Nikomat on ebay at an affordable price, so I needed to find a way to use my non-AI lenses with it. As a result, the ring was redesigned to feature rabbit ears (meter coupling prongs). Additionally, I designed the rabbit ears themselves, and if you don't mind, feel free to attach them to any AF-D lenses you may have. A version with a friction-mounted ring is also available, so you won't need to damage your lenses. Above is my 50mm f/1.8 lens equipped with the mounted rabbit ears.