Aanything
Joined: 27 Aug 2011
Posts: 2187
Location: Piacenza, Italy
Expire: 2014-05-30
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 Posted: Tue May 14, 2013 8:57 pm Post subject: |
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Aanything wrote:
| Lloydy wrote: |
| Aanything wrote: |
| The last one I bought is molybdenum disulfide, colored black, I used it for only lens so far, but it looks promising. |
I find that molybdenum disulfide grease separates if it is not in regular use, getting moved frequently. I've spent my working life as a maintenance engineer; on heavy equipment but lube is lube.. We used molybdenum disulfide grease a lot and had it in huge drums in the workshop, and when you removed the lid there was usually a pool of oil on the top that we had to mix back in before we used the grease. But in the right application it wouldn't separate. If we went to a machine that was lube'd with molybdenum disulfide and the machine had stood for a long period out of use there would be oil on the surface of any exposed grease.
Personally, I wouldn't use it on a slow moving, low pressure, low usage application. One of the most common uses for molybdenum disulfide is lubricating the constant velocity ( CV ) joints on car drive shafts, where it is sealed inside the rubber boots. CV joints are obviously a very mechanically stressful application, lens helicoids are entirely different.
If you used the molybdenum disulfide very sparingly then I would leave it and not worry about it, but I would recommend a general purpose grease, or a hi-tech lube such as Moleman suggests. It obviously works as he's had great success with many lenses. |
Good to know, thanks for the info.
I tried it as I found some in my father's toolbox, and I really liked the damping it gave to the lens.
But I have too many lenses to be sure each of them will be put in regular use.
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chris_zeel
Joined: 21 Jan 2013
Posts: 136
Location: Amsterdam, Netherlands
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| Posted: Sat May 18, 2013 10:15 am Post subject: |
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chris_zeel wrote:
| themoleman342 wrote: |
Member perkabrod prompted me to reply to this thread.
I spray the stuff into a glass container (not sure if some plastics could degrade/out-gas and affect the grease) and let it sit with the top open, in a dust free environment, for 3-4 days before using it. Stirring a few times each day. Makes sure the carrier had really evaporated out.
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What is the benefit of using the aerosol variant of DuPont while they also sell the same product in cans?
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DSLR: Canon 6D, Canon 400D
SLR: Praktica MTL5, Topcon RE-2, Topcon RE Super, Nikon EM, Chinon CE-3 Memotron, Pentacon F, Zenit 12-XP
Rangefinder: Zorki 4K, Ricoh 500G, Olympus 35 SP, Neoca 2S
Folder: Afga Isolette-I
Compact: Olympus mju-I
AF: Tamron 28-75 f/2.8 XR Di LD
Exakta: Meyer-Optik Trioplan 50/2.9, Primagon 35/4.5
M42: Sigma Mini Wide 28/2.8, Auto Chinon 28/2.8, Meyer-Optik Lydith 30/3.5, Pentacon Electric 29/2.8, Mir 1b 37/2.8, Super-Takumar 50/1.4, Meyer-Optik Oreston 50 f/1.8, Auto Yashinon 50/2, CZJ Tessar T 50/2.8, E. Ludwig Meritar 50/2.9, Meyer-Optik Primotar E 50/3.5, Industar 50-2 50/3.5, SMC Takumar 55/2, CZJ Biotar 58/2, Helios 44 58 f/2, Jupiter-9 85 f/2, Meyer-Optik 85/3.5, Super-Takumar 105/2.8, Accura Super Tc 135/2.8, Pentacon Zebra 135/2.8, Jupiter-11 135 f/4, Chinon MC Auto 200/3.5, Accura Supertel Tc 200/4.5, Soligor C/D Macro+Zoom 80-200/4.5
F-mount: Nikon Series E 28/2.8, 50/1.8, 100/2.8, Nikkor-S 35/2.8, Nikkor-H.C 50/2, Nikkor-H 85/1.8
Topcon: RE Auto Topcor 35/2.8, RE. Auto Topcor 58/1.8, RE. Auto Topcor 135/3.5
OM: Zuiko Auto-S 50/1. |
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