What is the difference between an AI lens, an AI-S lens, and Non-AI lens?
New Style Fotodiox Nikon to EOS Adapter Not Work with Pre-Ai Lenses? at DVinfo.net
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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
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