Nikon 300mm F2.8 AF

Started 3 months ago | Discussions thread
Kenster63
Kenster63 Regular Member • Posts: 155
Re: Nikon 300mm F2.8 AF
2

I'm pretty sure that on my manual focus Nikkor 800mm f/5.6 that most forward ring is used to quickly bring the lens to a preset focus point by turning the main focus ring, which stops at that preset point by way of being locked to the smaller one. I've never used it but that's the best I can figure what it's for.

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