Lens repair : Nikon Nikkor 50mm f/1.8 revival

Hello friends,
Please don't abuse your lenses, if you want to clean or repair them, there are tons of videos, blogs, articles, and repair manuals to help you do the job effectively. And a bit less common these days, very skilled repair technicians that can help.
With that being said, a friend bought this Nikkor 50mm f/1.8 AF from a guy who did not take at all that advice and completely massacred the lens, trying to do...........well, whatever he was trying to do. In any case, it wasn't a repair.

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Some useful stuff (I’ll get a small commission if you order thru any of the links):
Optical cleaning paper: https://amzn.to/2HXBgYI
Optical cleaning fluid: https://amzn.to/323HFci
Rubber tools: https://amzn.to/3mEcdco
Lens spanner: https://amzn.to/35VCYSL
JIS screwdrivers: https://amzn.to/3mC06MQ
(This set has J000, J00, J0, J1)

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