Leica LTM Focus not very smooth

Leica M39 screw mount bodies/lenses
A

AlTheKiller

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I cleaned up the threads my Leitz Elmar 5cm (black gunk of some sort) and it is now smoother than it was before but I was wondering if there is suppose to be any form of oil or grease to allow for a smooth focus? I wasn't sure if the black was just a bunch of dirt and dust or old grease/oil.
 
AlTheKiller said:
I cleaned up the threads my Leitz Elmar 5cm (black gunk of some sort) and it is now smoother than it was before but I was wondering if there is suppose to be any form of oil or grease to allow for a smooth focus? I wasn't sure if the black was just a bunch of dirt and dust or old grease/oil.
Click to expand...

I cleaned the threads of my Elmar with Ronsonol fluid. Then added a BIT of lithium grease to the read. Used a toothpick to add just a bit of it and worked the focusing for a bit. Its smoother real smooth now.

Regards.

Marcelo
 
mpaniagua said:
I cleaned the threads of my Elmar with Ronsonol fluid. Then added a BIT of lithium grease to the read. Used a toothpick to add just a bit of it and worked the focusing for a bit. Its smoother real smooth now.

Regards.

Marcelo
Click to expand...

Thank you for the reply. I will have to give this a try. I know Leica's are very particular and I didn't want to potentially ruin the lens.
 
I used a cotton swap with Ronsonol to clean the thread. Again, use just a bit of grease, you don't want to cover all the thread, just a bit, remember that once you work the focus, it will spread all over the threads.

Regards

Marcelo
 
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