Nikon Nikkor 50mm 1:1.4 lens Focusing Issue

JADoss23 · May 23, 2017

I have a Nikkor 50mm 1:1.4 lens on my Nikon f3. The lens itself is clear and takes great pictures but I realized that when I go to focus it the lens won't turn the entire way like it is supposed to. I can focus some but if I turn it too far it will stick and can't go past that point. Any clue what may be? Thanks.

BrianShaw · May 23, 2017

Gooey lube in the focusing helical thread, possibly holding in some debris that is causing the jamming. An overhaul by a pro isn't outrageously expensive and will likely restore its functionality to as it was when new.

RichardJack · May 24, 2017

Some times a small chip of metal from wear lodges itself in the focusing threads. As mentioned, a repair will cure that. Considering the cost (usually $75+) it might be wiser replacing the lens with a newer one.
I am assuming you have the AI version. The AIs version's latest run was the 2006. You have many options. If your brave you can probably tear down the lens yourself. There might be instructions or videos on the web.
Nikon 50mm serial numbers (to identify age): http://www.photosynthesis.co.nz/nikon/serialno.html#50fast

JADoss23 · May 25, 2017

RichardJack said:
Some times a small chip of metal from wear lodges itself in the focusing threads. As mentioned, a repair will cure that. Considering the cost (usually $75+) it might be wiser replacing the lens with a newer one.
I am assuming you have the AI version. The AIs version's latest run was the 2006. You have many options. If your brave you can probably tear down the lens yourself. There might be instructions or videos on the web.
Nikon 50mm serial numbers (to identify age): http://www.photosynthesis.co.nz/nikon/serialno.html#50fast

Any advice on replacement 50mm lenses? Is this particular lens a pretty average model?

MartinCrabtree · May 25, 2017

Don't replace it. Repair or have it done.

This is my 50/f1.4 Ais when I had the same issue. First time I ever tackled a lens. Works well now. I searched online and found an article outlining how to do it. It was nerve wracking but I made it through.

film_man · May 26, 2017

Given that the cost of repair is $100 or so, I'd say get it fixed and then you have a lens good for many years. The alternative is to spend $100 (or more, or less depends what you get) on a lens that for all you know will need a service in 3 months.

anfenglin · May 26, 2017

It could also be the focusing ring being slightly bent.

Nikon Nikkor 50mm 1:1.4 lens Focusing Issue

JADoss23

BrianShaw

RichardJack

JADoss23

MartinCrabtree

film_man

anfenglin

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