Author Topic: Notch in focus ring on early AF lenses?  (Read 224 times)

Bent Hjarbo

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Notch in focus ring on early AF lenses?
« on: August 17, 2021, 14:45:53 »
Someone asked me what the notch in the focus ring on early Nikkor AF is used for?
As the big internet doesn’t have a quick answer I want to see if Nikongear with all the knowledge can give an answer.

Thomas G

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Re: Notch in focus ring on early AF lenses?
« Reply #1 on: August 17, 2021, 16:36:06 »
[ Misread the question - deleted ]
-/-/-

Bent Hjarbo

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Re: Notch in focus ring on early AF lenses?
« Reply #2 on: August 17, 2021, 16:43:07 »
No, actually the notch is only on early AF lenses, not seen before or after.
It can be seen on this page
https://www.photo.net/discuss/threads/what-is-slot-on-50mm-1-4-af-focus-ring.299594/

Thomas G

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Re: Notch in focus ring on early AF lenses?
« Reply #3 on: August 17, 2021, 17:27:11 »
Uuuh, sorry. I did not read properly. I do not know about that one.
Will eliminate the post above.
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Akira

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Re: Notch in focus ring on early AF lenses?
« Reply #4 on: August 17, 2021, 22:29:07 »
My wild guess is that the notch might be for the dedicated wrench to screw the focus ring off the internal barrel?
"The eye is blind if the mind is absent." - Confucius

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richardHaw

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Re: Notch in focus ring on early AF lenses?
« Reply #5 on: August 17, 2021, 23:17:54 »
i knew the reason but i forgot :o :o :o
these are usually present on the plastic focusing rings ::)