Archived posting to the Leica Users Group, 2003/03/19
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Pat If a tech with the reputation of VanStelton caused a problem such as that, I shudder to think of what lesser repair persons could do. I have heard of oil on blade problems arising on SLRs but not on RF lenses. I trust that Focal Point made it right. Jerry Patrick Jelliffe wrote: > Richard, I think your question was valid as was > posting the ? on this forum, especially considering > the outlay for the lens and its age. It sounds as if > you've decided to go ahead and use it, and that seems > the best course to me from everything you and others > have said. > > I did have a Canon 50 f/1.2 screw mount lens serviced > by Focal Point. Apparently, VanStelten used a GREASE > with a high viscosity. It migrated over a period of 9 > months, and a total of TWO rolls of film using that > lens, no extreme temperatures either in use or > storage. Because it wasn't oil, the grease caused the > blades to bind and rendered the lens unuseable. Even > under examination, because of the use of grease and > not oil, there was no shiny telltale sign. Your case > is totally different, but mine is an example of > improper repair technique, and probably improper > volume of lubricant. > > Have a grand vacation out West. > > Regards, > > Patrick > > --- John Collier <jbcollier@shaw.ca> wrote: > > The oil is going to be no more or no less mobile on > > the blades than it > > was where ever it originally came from. Remember we > > are talking about 6 > > "teeny spots of oil". If the blades were wet with > > with oil that would > > be a different matter and probably because of > > incompetent servicing. > > > > As to reflections, again 6 "teeny spots of oil"!? Am > > I going to throw > > away all my old lenses with shiny aperture blades? > > Do you? My old > > Hektor is a great performer stopped down and that is > > with very polished > > aperture blades? If only it was as good wide open > > when those > > "obviously" faulty blades were out of the way! > > > > John Collier (Who has never looked inside a lens > > unless the negatives > > were problematic. If the negs look good, then who in > > h*** cares what is > > in the lens!) > > > > -- > > To unsubscribe, see > http://mejac.palo-alto.ca.us/leica-users/unsub.html > > __________________________________________________ > Do you Yahoo!? > Yahoo! Platinum - Watch CBS' NCAA March Madness, live on your desktop! > http://platinum.yahoo.com > -- > To unsubscribe, see http://mejac.palo-alto.ca.us/leica-users/unsub.html - -- To unsubscribe, see http://mejac.palo-alto.ca.us/leica-users/unsub.html