Henrymu Posted June 7, 2009 Share #1 Posted June 7, 2009 Advertisement (gone after registration) Hi, My 18-month-old 24mm Elmarit has developed a 'wobble' where the front part of the lens from the focus ring on is moving. I've not knocked it and can't understand how the fault has occurred. Has anyone else experienced the same? Cheers Link to post Share on other sites More sharing options...
Advertisement Posted June 7, 2009 Posted June 7, 2009 Hi Henrymu, Take a look here Wobbly 24mm Elmarit. I'm sure you'll find what you were looking for!
noah_addis Posted June 7, 2009 Share #2 Posted June 7, 2009 I had a similar experience with my 28 'Cron, though it was much older it had not been knocked or dropped. A quick trip to Leica NJ fixed it right up. Link to post Share on other sites More sharing options...
lars_bergquist Posted June 8, 2009 Share #3 Posted June 8, 2009 I have had the same experience with a 21mm Elmarit and a 28mm Summicron. The front half of the lens is threaded on the main barrel (focusing unit) and there is some loctite-like goo in the thread. With some designs, the thread is too short, and repeated torque on a lens shade can in time loosen it. I think Leica should give some attention to this risk in the future. The old man from the Age of the Screw Thread Link to post Share on other sites More sharing options...
rsh Posted June 8, 2009 Share #4 Posted June 8, 2009 With the 28 Summicron, if you take a small screwdriver and tighten ever so slightly the screws just forward of the aperture ring, the problem should be eliminated. Link to post Share on other sites More sharing options...
noah_addis Posted June 8, 2009 Share #5 Posted June 8, 2009 ...With some designs, the thread is too short, and repeated torque on a lens shade can in time loosen it.... Interesting. I never had a problem with the 28 'Cron until I got an M8, which meant I was occasionally switching from a UV filter to a UV/IR filter which meant more torque on the front of the lens. Link to post Share on other sites More sharing options...
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