What is the difference between an AI lens, an AI-S lens, and Non-AI lens? | Nikon Knowledgebase

A Nikon Ai lens note no Notch above lens locking cut out. A Nikon Ais lens, with lens type signaling pin notch ( highlighted red circle ). Rate this answer Rate answer 5 of 5 Rate answer 4 of 5 Rate answer 3 of 5 Rate answer 2 of 5 Rate answer 1 of 5

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