RJT Posted July 28 Author Share #21 Posted July 28 Advertisement (gone after registration) On 7/26/2025 at 9:38 PM, Maarten said: Looking at your picture with the aperture ring in place, I wonder if there is a ring missing that fits on the black thread that is still visible under the filter? That ring would then keep the aperture ring in place. Although the residue looks like an adhesive, I doubt a modern Leica lens is glued together. There is a silver lens ring, that you use if the hood isn’t being used - but it doesn’t retain the aperture ring. Link to post Share on other sites More sharing options...
Advertisement Posted July 28 Posted July 28 Hi RJT, Take a look here Leica 35mm F2 Asph M Chrome - 11674 - aperture ring has slipped off!. I'm sure you'll find what you were looking for!
RJT Posted July 28 Author Share #22 Posted July 28 For those that have any interest in this thread, another camera technician has confirmed that this is the only Leica lens that uses adhesive - all others use a grub screw - and he recommends the use of a two pack adhesive. He also says he has repaired a few of these this year….. 3 Link to post Share on other sites More sharing options...
pedaes Posted July 28 Share #23 Posted July 28 3 minutes ago, RJT said: two pack adhesive. Caution! Two pack (epoxy) is very strong which would be fine if this ring doesn't have to be removed in future to further disassemble the lens for any reason - like clean the elements. You will not get it off using an epoxy without destroying it. Surprised a good tech advised this unless it can stay in place forever, but I would check. It is probably a high tech adhesive and you were just unlucky in that the correct amount was not used. If under warranty I would send to Wetzlar FWIW> Good luck. 1 Link to post Share on other sites More sharing options...
Ecar Posted July 28 Share #24 Posted July 28 So it's not only LLL that uses glue instead of screws these days...🙄 1 4 Link to post Share on other sites More sharing options...
Vanillasludge Posted July 28 Share #25 Posted July 28 (edited) 8 hours ago, RJT said: For those that have any interest in this thread, another camera technician has confirmed that this is the only Leica lens that uses adhesive - all others use a grub screw - and he recommends the use of a two pack adhesive. He also says he has repaired a few of these this year….. Leica needs to get a reign on this kind of stuff. These are the kind of engineering decisions that have ruined the reputation of German cars over the past 25 years. Edited July 28 by Vanillasludge Link to post Share on other sites More sharing options...
RJT Posted July 29 Author Share #26 Posted July 29 Now confirmed by Leica……. I’ve spoken with our technicians in Germany, and I can confirm that the aperture ring is indeed secured in place using a specialised adhesive. This is an intentional part of the assembly process. We would strongly advise against attempting to reattach the ring yourself. If the ring is reattached incorrectly or if adhesive enters the optical or mechanical components, it could result in damage that would require a significantly more complex and costly repair. Link to post Share on other sites More sharing options...
earleygallery Posted July 29 Share #27 Posted July 29 Advertisement (gone after registration) I'm genuinely shocked at this! 1 Link to post Share on other sites More sharing options...
TomB_tx Posted July 29 Share #28 Posted July 29 So I guess Leica is now trying to catch up with Chinese methods? 1 Link to post Share on other sites More sharing options...
pedaes Posted July 29 Share #29 Posted July 29 2 hours ago, RJT said: Now confirmed by Leica……. I’ve spoken with our technicians in Germany, and I can confirm that the aperture ring is indeed secured in place using a specialised adhesive. This is an intentional part of the assembly process. We would strongly advise against attempting to reattach the ring yourself. If the ring is reattached incorrectly or if adhesive enters the optical or mechanical components, it could result in damage that would require a significantly more complex and costly repair. It might be something Leica Mayfair can handle, although Leica have a track record of wanting to do a total rebuild for the smallest repair. Link to post Share on other sites More sharing options...
earleygallery Posted July 29 Share #30 Posted July 29 2 hours ago, TomB_tx said: So I guess Leica is now trying to catch up with Chinese methods? The Tesla Cybertruck is mostly glued together too - lots of videos on You Tube of peole with panels dropping off! So, maybe Leica are catching up Tesla?! Style over substance. Link to post Share on other sites More sharing options...
Vanillasludge Posted July 30 Share #31 Posted July 30 5 hours ago, earleygallery said: The Tesla Cybertruck is mostly glued together too - lots of videos on You Tube of peole with panels dropping off! So, maybe Leica are catching up Tesla?! Style over substance. It is mind boggling to me that they would do this, considering the value of the company is based on perceptions of quality and longevity. Even if there is a legitimate engineering case to be made, the perceptions of the customer must come above all else. A couple of set screws would not deter from the appearance of the product, especially if they used little red ones with “L” on top 😂 Link to post Share on other sites More sharing options...
jakontil Posted July 30 Share #32 Posted July 30 9 hours ago, RJT said: Now confirmed by Leica……. I’ve spoken with our technicians in Germany, and I can confirm that the aperture ring is indeed secured in place using a specialised adhesive. This is an intentional part of the assembly process. We would strongly advise against attempting to reattach the ring yourself. If the ring is reattached incorrectly or if adhesive enters the optical or mechanical components, it could result in damage that would require a significantly more complex and costly repair. If it’s under warranty, send it away to leica… otherwise im pretty sure folks at local experienced shops will do it just fine Link to post Share on other sites More sharing options...
pippy Posted July 30 Share #33 Posted July 30 (edited) 6 hours ago, jakontil said: If it’s under warranty, send it away to leica… I am not a lawyer - so don't quote me - but even if the lens is no longer under guarantee surely this situation should still be remedied FoC by Leica as this issue should be covered by the 'manufacturing defect' clause which is usually one of the conditions cited in a manufacturer's warranty statement. As others have said; seeing Leica use such an assembly 'solution' has come as a rather unpleasant shock. Leica's once-renowned reputation for utilising engineering of the highest quality has fallen to a new low. Oskar Barnack must be turning in his grave...... Philip. Edited July 30 by pippy 1 1 Link to post Share on other sites More sharing options...
jakontil Posted July 30 Share #34 Posted July 30 3 hours ago, pippy said: I am not a lawyer - so don't quote me - but even if the lens is no longer under guarantee surely this situation should still be remedied FoC by Leica as this issue should be covered by the 'manufacturing defect' clause which is usually one of the conditions cited in a manufacturer's warranty statement. As others have said; seeing Leica use such an assembly 'solution' has come as a rather unpleasant shock. Leica's once-renowned reputation for utilising engineering of the highest quality has fallen to a new low. Oskar Barnack must be turning in his grave...... Philip. I never thought it is a defect in manufacturing, may be just the way it is.. but my relief hopefully my cron asph v1 dont suffer frm such designs.. not saying it’s flaw but sometimes, sending to leica is a trouble especially from the third world country like where i live.. just fortunate we have some leica specialits which CLA and repair most of the things 1 Link to post Share on other sites More sharing options...
Vanillasludge Posted July 30 Share #35 Posted July 30 10 hours ago, jakontil said: I never thought it is a defect in manufacturing, may be just the way it is.. but my relief hopefully my cron asph v1 dont suffer frm such designs.. not saying it’s flaw but sometimes, sending to leica is a trouble especially from the third world country like where i live.. just fortunate we have some leica specialits which CLA and repair most of the things I would never have the patience to send it off. If a dab of glue was good enough for Leica I would probably do it myself. Considering the job Leica did in assembly I feel pretty confident I could equal or surpass their results 😂 1 1 Link to post Share on other sites More sharing options...
jakontil Posted July 31 Share #36 Posted July 31 3 hours ago, Vanillasludge said: I would never have the patience to send it off. If a dab of glue was good enough for Leica I would probably do it myself. Considering the job Leica did in assembly I feel pretty confident I could equal or surpass their results 😂 Exactly what i thought.. be done and move on in seconds.. rather than having to wait for weeks or months shipping it off 1 Link to post Share on other sites More sharing options...
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