Archived posting to the Leica Users Group, 1999/08/03
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]I think this was discussed a few months ago and the answer was that Leica puts a bit of lacquer on the focus mount to set something tight and this can come off. It does not affect lens performance, but a good technician can fix it up by applying the lacquer again. Regards, Robert At 07:57 AM 8/3/99 -0400, you wrote: >I was told by a well-regarded Leica dealer that the front assembly on the pre-ASPH 35mm Summicron-M can be loosened by the slip-on >plastic lens cap as well. It's not uncommon to remove the cap, which fits snugly, by giving it a twist and a pull. Apparently that >twist can loosen the front of the lens over time. The cap should be removed with a straight-off pull. > >Or, the cap should be tossed in a drawer and never used again. I do tend to remove the lens by twisting the hood, though. I'll >have to watch that. > >One other thought: Is this a consistent/persistent problem with this lens, or is the problem only found in certain serial number >ranges? I have a late, German Summicron (3604252). The front is nice and tight, so far. > >Rob >--------------------------------------- > >> >> Date: Tue, 03 Aug 1999 07:47:22 +0100 >> From: Gerry Walden <gerrywalden@cwcom.net> >> Subject: [Leica] Re: Leica Users digest V10 #60 >> >> > From: "Simon Pulman-Jones" >> > Subject: [Leica] 35 Summicron looseness of barrel problem >> > >> > The front element and aperture ring of my late non-asph. 35 Summicron have a >> > small but noticeable amount of looseness which means that they can be moved >> > a little off the lens axis. I can't be certain that this has got worse >> > recently or has always been this way - I can't say I've noticed any >> > difference in the performance of the lens, but I'm worried that the >> > looseness is going to get worse. I have never noticed this on any other >> > Leica lens. Has anybody else noticed this with their 7-element 35 Summicron? >> > Any experiences of getting the problem sorted? - there are no visible screws >> > that might be tightened. >> > >> > Thanks, >> > >> > Simon. >> > >> >> I had the self same problem shortly after purchasing my 35mm lens from a Leica dealer >> secondhand (but pretty new). I returned it to them and they told me it can happen >> sometimes - evidently a collar around the lens assembly can work loose. They >> tightened it up for me and it has been fine ever since. >> >> Gerry (UK) > >