InigoTaylor Posted May 14, 2016 Share #1 Posted May 14, 2016 Advertisement (gone after registration) Hi Guys My beloved v4 35 cron has broken (third time) it always repairs just fine but after a period of time the front section of the lens barrels slips and rotates freely, first time it was real shock and was fixed my a non leica specialised repair man, after a short period of time it happened again, i retired the camera for several years rather bitter then called aperture uk, (great shop and service) i shiped lens to them and it came back better than ever, now after two years it has slipped again, this is obviously an inherent fault with my version. Has anyone heard of this ? two of the times i was adding a filter and what felt like light screwing slipped the front of the lens. It can be fixed and the lens works fine but it is rather annoying and when i am used to shooting with the m6 daily it is rather awful to be without it and i only have one lens. which brings up another point, second hand cron 50 v4 or 50mm summit 2.5 i know the cron is the preferred choice but after this experience I'm a little nervous of s/h as my 35 appears totally mint on the exterior. thanks chaps and ladies. Quote Link to post Share on other sites More sharing options...
Advertisement Posted May 14, 2016 Posted May 14, 2016 Hi InigoTaylor, Take a look here broken 35mm version 4 summicron. I'm sure you'll find what you were looking for!
jaapv Posted May 14, 2016 Share #2 Posted May 14, 2016 Please don't use these horrid turbo-talk abbreviations, they grate and are often ambiguous. A Summarit 50 is an excellent choice, but obviously there is nothing wrong with any Summicron 50. As for the repair, I can fully recommend Will van Manen in the Netherlands. 2 Quote Link to post Share on other sites More sharing options...
AceVentura1986 Posted May 14, 2016 Share #3 Posted May 14, 2016 I've sot a 50 summicron, the type w the retractable l no hood. (Version V?). It's almost the only lens I use so I can greatly recommend this lens. Quote Link to post Share on other sites More sharing options...
Stein K S Posted May 14, 2016 Share #4 Posted May 14, 2016 Please don't use these horrid turbo-talk abbreviations, they grate and are often ambiguous. Hi Jaap And thanks! I am impressed both by the knowledge and about the "reasonability" and patience of the moderators in this forum. I really appreciate you! And for myself, I also really try to keep to the issue being discussed... even if feelings can be "disturbing" at times... However, on this one I can only say that I do understand the OP (not offending) description of his experience... I do own the 35 cron IV myself and I do for sure hope that I will not experience the same thing (even if I am prepared since this is not an unusual thing with this lens).... And there is also always this language "trap" for a lot of us... I do hope I did not cross an unacceptable line with this comment! The very best from Stein Quote Link to post Share on other sites More sharing options...
Frase Posted May 14, 2016 Share #5 Posted May 14, 2016 It's surely worth getting it fixed, it's not a difficult lens to work on I've just fixed my v4 after the focus handle or whatever you call it broke off! Even the cheapest 35mm summicron is still going to cost £800. As for aperture they had two goes at trying to fix my 35mm summilux and couldn't do it I fixed it myself all it needed was the shims sorted. But credit to them they didn't charge me anything. Quote Link to post Share on other sites More sharing options...
lct Posted May 15, 2016 Share #6 Posted May 15, 2016 Do you mean the lens barrel is unscrewed from the focus mount like this? If so, i would just screw it when it is unscrewed. Not a big deal, been doing this for 20+ years. Now better refrain from grabbing the lens by the hood to avoid that. Welcome, dear visitor! As registered member you'd see an image here… Simply register for free here – We are always happy to welcome new members! Quote Link to post Share on other sites Simply register for free here – We are always happy to welcome new members! ' data-webShareUrl='https://www.l-camera-forum.com/topic/260456-broken-35mm-version-4-summicron/?do=findComment&comment=3044966'>More sharing options...
NickR Posted May 15, 2016 Share #7 Posted May 15, 2016 Advertisement (gone after registration) Do you mean the lens barrel is unscrewed from the focus mount like this? If so, i would just screw it when it is unscrewed. Not a big deal, been doing this for 20+ years. Now better refrain from grabbing the lens by the hood to avoid that. DSC01536_afterweb.jpg The OP said that the front element "rotates freely" which doesn't sound like it is merely unscrewing. Quote Link to post Share on other sites More sharing options...
lct Posted May 15, 2016 Share #8 Posted May 15, 2016 Not sure how it could rotate otherwise. It is just an optical cell that can be screwed or unscrewed the same way as a lens head for Visoflex, save that it is not made for that. Same for the "thin" Tele-Elmarit 90/2.8 BTW (pic). I may be wrong though. Always glad to learn new things on this good old forum. Welcome, dear visitor! As registered member you'd see an image here… Simply register for free here – We are always happy to welcome new members! Quote Link to post Share on other sites Simply register for free here – We are always happy to welcome new members! ' data-webShareUrl='https://www.l-camera-forum.com/topic/260456-broken-35mm-version-4-summicron/?do=findComment&comment=3045228'>More sharing options...
jaapv Posted May 15, 2016 Share #9 Posted May 15, 2016 Some lenses (like the Summicron-C 40/2.0) have a nut on the back of the optical cell, which can - and often does- get loose. Simply tightening it firmly solves the problem. Micro tools sell the proper two-pronged wrench. Quote Link to post Share on other sites More sharing options...
lct Posted May 15, 2016 Share #10 Posted May 15, 2016 Interesting thanks. Any pic of this nut? Quote Link to post Share on other sites More sharing options...
dbraid Posted May 15, 2016 Share #11 Posted May 15, 2016 Is post #6 a picture of the Summicron 35 v4? The focus tab on my Summicron has come loose. It "looks" like I could tighten the tab if I could pull out the optical cell and reach what I imagine to be screws inside the focus mount. If so--what is the proper way to unscrew the optical cell? Thanks Quote Link to post Share on other sites More sharing options...
jaapv Posted May 16, 2016 Share #12 Posted May 16, 2016 Interesting thanks. Any pic of this nut? Sure. The inner ring. Notice the two indents for tightening the nut. Welcome, dear visitor! As registered member you'd see an image here… Simply register for free here – We are always happy to welcome new members! Quote Link to post Share on other sites Simply register for free here – We are always happy to welcome new members! ' data-webShareUrl='https://www.l-camera-forum.com/topic/260456-broken-35mm-version-4-summicron/?do=findComment&comment=3045549'>More sharing options...
lct Posted May 16, 2016 Share #13 Posted May 16, 2016 Looks like a part of the focus mount. Could this explain a rotation of the optical cell? Quote Link to post Share on other sites More sharing options...
lct Posted May 16, 2016 Share #14 Posted May 16, 2016 Is post #6 a picture of the Summicron 35 v4? The focus tab on my Summicron has come loose. It "looks" like I could tighten the tab if I could pull out the optical cell and reach what I imagine to be screws inside the focus mount. If so--what is the proper way to unscrew the optical cell? Yes it is a 35/2 v4 but i have not the lens with me here and i don't recall how the focus tab is fixed actually. I don't recall the way i've unscrewed the optical cell either sorry. Happened 20+ years ago by rotating it anticlockwise i guess, perhaps by grabbing the lens by the hood i don't know. All i can say is it is easy to remove it this way now. I cannot advise you to do it on purpose though. 1 Quote Link to post Share on other sites More sharing options...
duckrider Posted May 16, 2016 Share #15 Posted May 16, 2016 I can't see any "horrid turbo talk" in the thread opener's text, but a horrid lens quality this ver.4 Summicron has: there are quite a lot of other owners of this lens with just the same problem: http://www.l-camera-forum.com/topic/116100-35-summicron-frontelement-hat-spiel-kosten/ http://www.l-camera-forum.com/topic/145408-leica-summicron-35-v4-defekt/ Thomas Quote Link to post Share on other sites More sharing options...
Frase Posted May 16, 2016 Share #16 Posted May 16, 2016 Is post #6 a picture of the Summicron 35 v4? The focus tab on my Summicron has come loose. It "looks" like I could tighten the tab if I could pull out the optical cell and reach what I imagine to be screws inside the focus mount. If so--what is the proper way to unscrew the optical cell? Thanks I've just fixed my focus tab and how I did it was to remove the mount once you have done that there is a part under the mount see picture then the lens unscrews on the helicoil. VERY IMPORTANT!!!!!!!!! the lens must be screwed back at the exact same point or the lens will not focus. IMG_0262a by f4saregreat!, on Flickr Quote Link to post Share on other sites More sharing options...
Frase Posted May 16, 2016 Share #17 Posted May 16, 2016 Oh and when the lens is in parts don't adjust the focus. good luck. 1 Quote Link to post Share on other sites More sharing options...
jaapv Posted May 16, 2016 Share #18 Posted May 16, 2016 Looks like a part of the focus mount. Could this explain a rotation of the optical cell? yes, unscrew it and the optical cell separates from the mount - but this is not the lens of the OP Quote Link to post Share on other sites More sharing options...
dbraid Posted May 16, 2016 Share #19 Posted May 16, 2016 Thank you. Now I need to find the time. Gaffer's tape has stabilized the focus tab until I get to taking the lens apart. Donald Quote Link to post Share on other sites More sharing options...
InigoTaylor Posted May 17, 2016 Author Share #20 Posted May 17, 2016 thanks for all the help guys, yeah it is an easy fix for the repair man just wanted to see if anyone else had this trouble. Apologies for my bad terminology didn't know to abbreviate what such a a crime! alas i have some time away from my lens as it gets repaired. Quote Link to post Share on other sites More sharing options...
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