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Copal Shutters, Need Lubrication?
Does a Copal Press 1 shutter need lubrication? I know that some photographic
shutters are designed to run dry, but I don't know if this is the case with Copals. I cleaned one of my shutters which got stuck at the longer times with a solvent. Now it works perfectly, but I am afraid it will wear out early if it is dry. If any, what kind of oil would I need to lubricate it? Thank you Heinz |
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Copal Shutters, Need Lubrication?
"Heinz Grau" wrote in message ... Does a Copal Press 1 shutter need lubrication? I know that some photographic shutters are designed to run dry, but I don't know if this is the case with Copals. I cleaned one of my shutters which got stuck at the longer times with a solvent. Now it works perfectly, but I am afraid it will wear out early if it is dry. If any, what kind of oil would I need to lubricate it? Thank you Heinz There is not much lubrication used on most shutters. Mostly a very small amount of fine oil, like watch oil, used on the bearings of the gears in the speed regulator escapement. In the USA one can get suitable synthetic (silicon) oil at hobby shops that model railroad materials. Another oil is Nyoil, a Google search will find it. The oil is applied with a bit of wire or a very fine brush. Some sliding parts, mostly speed adjusting rings, etc, sometimes are lubricated with light silicon grease. If the shutter is on speed without lubricant I would leave it that way. Silicon lubricants have the properties of not wandering, operating over very large temperature ranges, and not thickening up with time. All lubricants tend to trap dust over time. Never use powdered graphite in a shutter and never lubricate shutter blades. -- --- Richard Knoppow Los Angeles, CA, USA |
#3
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Copal Shutters, Need Lubrication?
"Richard Knoppow" wrote
"Heinz Grau" wrote Does a Copal Press 1 shutter need lubrication? Not if you use it as an amateur. It will probably last longer without: then it wont's jam up and need cleaning again. If you fix anything enough times you will break it. If any, what kind of oil would I need to lubricate it? As Richard suggests, 'Nyes' is the place to go. They have a web site. Silicon lubricants have the properties of not wandering Some don't. Most do, and all 'retail' ones do as they 'penetrate'. And they will also thicken because they have a volatile component, allowing them to penetrate, and that will eventually evaporate. The ones that don't wander or thicken are the lubes and greases made for operating in high-vacuum/high-temperature environments. Again, Nyes and Corning are the sites to go to for more info. Never lubricate shutter [and aperture] blades I wish someone would tell Nikon. They seem to have an 'Auto-Lube' feature in their 35mm lenses. -- Nicholas O. Lindan, Cleveland, Ohio Consulting Engineer: Electronics; Informatics; Photonics. Remove spaces etc. to reply: n o lindan at net com dot com psst.. want to buy an f-stop timer? nolindan.com/da/fstop/ |
#4
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Copal Shutters, Need Lubrication?
Thank you, Richard and Nicholas,
so I will leave it as it is, it is doing very well on speed and sounds very much like a new one. I think the former owner lubricated it with an unsuitable oil, now that this is washed out, it works o.k.. "Nicholas O. Lindan" schrieb im Newsbeitrag link.net... "Richard Knoppow" wrote "Heinz Grau" wrote Does a Copal Press 1 shutter need lubrication? Not if you use it as an amateur. It will probably last longer without: then it wont's jam up and need cleaning again. If you fix anything enough times you will break it. If any, what kind of oil would I need to lubricate it? As Richard suggests, 'Nyes' is the place to go. They have a web site. Silicon lubricants have the properties of not wandering Some don't. Most do, and all 'retail' ones do as they 'penetrate'. And they will also thicken because they have a volatile component, allowing them to penetrate, and that will eventually evaporate. The ones that don't wander or thicken are the lubes and greases made for operating in high-vacuum/high-temperature environments. Again, Nyes and Corning are the sites to go to for more info. Never lubricate shutter [and aperture] blades I wish someone would tell Nikon. They seem to have an 'Auto-Lube' feature in their 35mm lenses. -- Nicholas O. Lindan, Cleveland, Ohio Consulting Engineer: Electronics; Informatics; Photonics. Remove spaces etc. to reply: n o lindan at net com dot com psst.. want to buy an f-stop timer? nolindan.com/da/fstop/ |
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