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whojammyflip · 06-14-2011, 05:26 PM

Please can someone recommend grease for lubing up a focussing thread. I'm going to take a prime (cheap one) apart and have a go.

EDIT: looks like Nikon grease is available on ebay

Last edited by whojammyflip; 06-14-2011 at 05:34 PM.

SOldBear · 06-14-2011, 05:41 PM

I use automotive bearing grease. If it can sustain high pressure, high temperature in bearings, it can handle lenses.

wlachan · 06-14-2011, 11:41 PM

Should do, just don't apply too much. Clean off the old grease with kitchen detergent then brush on a very thin layer on one side will do. If you see it squeezing out, it's too much.

elliott · 06-15-2011, 12:23 AM

I spray the helicoids down with brake cleaner to remove everything that was on them, it leaves them completely clean with no residue.

For grease, I use white lithium grease, I get it in a spray can from CRC. I spray some on a cloth and wipe it on the helicoids, just enough to give it a light coating.

First one I did was a cheap Suntar 135mm, it would barely turn and it was impossible to use. I also did my Mamiya-Sekor 60mm macro after I was confident that I would not ruin it. That was roughly a year ago and they both still focus very smoothly and I have not had any problem with the grease creeping. I recently did my Jupiter-9, it had some really nasty grease from the factory.

**pacerr** · 06-15-2011, 06:25 AM

https://www.pentaxforums.com/forums/maintenance-repair-articles/139172-lubric...ml#post1452966

whojammyflip · 06-16-2011, 01:37 AM

Thanks, think I will opt for some Nikon FC-4, which is designed for Nikon manual focus helicoids.

06-14-2011, 05:26 PM	#1
whojammyflip Veteran Member Join Date: Aug 2009 Posts: 417	Grease for focussing threads Please can someone recommend grease for lubing up a focussing thread. I'm going to take a prime (cheap one) apart and have a go. EDIT: looks like Nikon grease is available on ebay Last edited by whojammyflip; 06-14-2011 at 05:34 PM.

06-15-2011, 06:25 AM	#5
pacerr Loyal Site Supporter Join Date: Jan 2008 Location: Paris, TN Photos: Gallery \| Albums Posts: 3,350	Articles - Maintenance section https://www.pentaxforums.com/forums/maintenance-repair-articles/139172-lubric...ml#post1452966

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06-14-2011, 05:41 PM	#2
SOldBear Veteran Member Join Date: Feb 2009 Location: Alameda, CA Posts: 3,206	I use automotive bearing grease. If it can sustain high pressure, high temperature in bearings, it can handle lenses.

06-14-2011, 11:41 PM	#3
wlachan Veteran Member Join Date: Sep 2006 Location: Canada Photos: Albums Posts: 2,625	Should do, just don't apply too much. Clean off the old grease with kitchen detergent then brush on a very thin layer on one side will do. If you see it squeezing out, it's too much.

06-15-2011, 12:23 AM	#4
elliott Inactive Account Join Date: Dec 2008 Location: North Carolina Photos: Albums Posts: 1,720	I spray the helicoids down with brake cleaner to remove everything that was on them, it leaves them completely clean with no residue. For grease, I use white lithium grease, I get it in a spray can from CRC. I spray some on a cloth and wipe it on the helicoids, just enough to give it a light coating. First one I did was a cheap Suntar 135mm, it would barely turn and it was impossible to use. I also did my Mamiya-Sekor 60mm macro after I was confident that I would not ruin it. That was roughly a year ago and they both still focus very smoothly and I have not had any problem with the grease creeping. I recently did my Jupiter-9, it had some really nasty grease from the factory.

06-16-2011, 01:37 AM	#6
whojammyflip Veteran Member Join Date: Aug 2009 Posts: 417 Original Poster	Thanks, think I will opt for some Nikon FC-4, which is designed for Nikon manual focus helicoids.

Grease for focussing threads

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