The differences between the Non-AI, AI, Af-D, AF-s/G and AIS Nikon mounts - Vintagelens
1976 Nikon Nikkor 50mm f/1.4 Non-Ai Lens with Box Final Version K Type Good User | eBay
Lens Adapter Ring For Nikon F (non-ai, Ai, Ais) Lens To For Canon Eos Ef Ai-eos 550d 60d 5d3 700d 7d 50d 5d2 6d Brass Silver - Lens Adapter - AliExpress