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Classic35mm
Tinkerer
Username: Classic35mm
Post Number: 5
Registered: 04-2007
Rating: N/A
Votes: 0 (Vote!) | | Posted on Wednesday, April 25, 2007 - 01:59 pm: | 
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Hi everyone, I have read pros and cons about lubricating shutter blades and I have an idea that may prove effective. How about RD-50 or RZ-50 dry lubricant? This is a dry film lubricant that sprays on clear, leaves no residue, contains no oil or silicone, and creates a permanent ball bearing-like surface. It can be purchased at Home Depot. I tried it on some sheet metal and it dried in seconds leaving the surface really smooth. What is everyone’s opinion?
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Rick_oleson
Tinkerer
Username: Rick_oleson
Post Number: 250
Registered: 07-2006
Rating: N/A
Votes: 0 (Vote!) | | Posted on Wednesday, April 25, 2007 - 09:03 pm: |
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Dear God no.
Shutter blades do not require or want lubricant. They want to be clean. 99% of the time, getting them clean and working properly consists essentially of removing lubricant from them so that they can work again.
If a shutter does happen to need lubrication, it is in the form of a drop or two, carefully applied to the star wheel and pallet bearings and carefully kept away from the blades and the actuating ring. The last thing it wants is to have stuff (with the possible exception of a pure solvent) sprayed on it. |
Arnoldharris
Tinkerer
Username: Arnoldharris
Post Number: 6
Registered: 07-2006
Rating: N/A
Votes: 0 (Vote!) | | Posted on Tuesday, May 01, 2007 - 05:46 am: |
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.... and you can't go wrong by making sure the pure solvent is plain old naptha, which you can buy in handy little one-quart cans inexpensively from most True-Value hardware stores under the Sunnyside label. (Look for the white, yellow and mustard color cans in the paint section of the store.)
Carefully read and heed all the health and fire-hazard warnings printed on the back side of the can.
Aside from that, follow all Rick's suggestions about shutter lubrication in only the tiniest amounts. Over time, lubricants become dessicated and either slow or totally stop the small shutter parts from working properly. Which is when your camera needs a CLA job.
As for the shutter blades, they were engineered from the get-go (early 20th century?) to slide past one another with no lubricants.
Arnold Harris
Mount Horeb WI |
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