Archived posting to the Leica Users Group, 2000/06/10
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]>> Better have it checked. Those symptons are often due to a screw coming >> loose inside, and forcing the focussing can damage something quite easily. > >Henning, > >All of the screws on the rear of the lens are intact, and shining a >flashlight into the lens reveals that the screws (?) surrounding the >aperture ring are also intact, as are the screws on the lens mount and >inside the body (at least all that are visible). Are there any others that >aren't visible that might have come loose? > >I figure some grit or dirt got into the threads of the focusing cam and had >to work its way loose before it would turn freely, or else the grease >happened to stiffen up at that spot. > >I hate to take it back to the dealer and lose the use of the lens if its >really nothing. I'm inclined to hold onto it and only send it back if the >problem happens again. But if you feel there is a reasonable risk that the >occurrence reflects a serious problem, I will defer to your better judgment. >Perhaps this is all the excuse I need to buy the 28/2.8 in the meantime. :) > >Thanks for your input, >Dan I don't know the construction of the lens, so there might be nothing to come loose and get in the way. Set screws in or near focussing rings/helicoids have been a problem on other lenses over the years if they get loosened by airplane or car rides in particular. Maybe someone who has taken one of these lenses apart can give a definitive answer on this. * Henning J. Wulff /|\ Wulff Photography & Design /###\ mailto:henningw@archiphoto.com |[ ]| http://www.archiphoto.com