Micro-Nikkor 105mm F/4 Ai vs. Ai-S Versions

Started Sep 10, 2009 | Discussions thread
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VRII Senior Member • Posts: 2,529
Micro-Nikkor 105mm F/4 Ai vs. Ai-S Versions

Well. I just noticed something interesting , I thought the only difference was that the AI-S version had a knob in the focusing ring to lock down the focus point. But comparing an AI-S vs a AI , I noticed that the body of the AI version has a wider body and it's a bit heavier.

The optical formula seems the same 5/3 anyone with time to waste has any insightful info on any optical differences between the AI & AI-S?

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