photonc Posted April 13, 2021 Share #1 Posted April 13, 2021 Advertisement (gone after registration) I recently purchased a new 28 cron and it arrived sealed however the barrel of the lens is stamped 35mm and the top is stamped 28mm. The lens is actually a 28 Cron. Should I exchange for a new one or is there any collectors value with this type of defect? Link to post Share on other sites More sharing options...
Advertisement Posted April 13, 2021 Posted April 13, 2021 Hi photonc, Take a look here Manufacturing Error - 28 cron labeled as 35. I'm sure you'll find what you were looking for!
Gobert Posted April 13, 2021 Share #2 Posted April 13, 2021 Keep it and put it in your safe. Buy an additional one for use. The value of this specimen will explode. 5 Link to post Share on other sites More sharing options...
Casey Jefferson Posted April 13, 2021 Share #3 Posted April 13, 2021 Keep it! One of a kind collectable! Moreover it's one of the best lens from Leica! Link to post Share on other sites More sharing options...
Herr Barnack Posted April 13, 2021 Share #4 Posted April 13, 2021 (edited) Leica might want it for their museum. Hang on to this lens, though. Some day it will be worth about a billion dollars at auction - and probably sooner rather than later. Edited April 13, 2021 by Herr Barnack Link to post Share on other sites More sharing options...
onasj Posted April 13, 2021 Share #5 Posted April 13, 2021 (edited) As strange as it sounds, you may have just won the Leica lottery. Could also inspire a limited edition 28 cron "in the spirit of 35", in which the 35 stamped on the barrel serves as a steadfast reminder to the photographer to compose photographs with a 35-mm crop focus in mind, while still providing the context of a 28-mm classic. Ingenious. Totally worth a premium price for that constant reminder. Edited April 13, 2021 by onasj 1 Link to post Share on other sites More sharing options...
Herr Barnack Posted April 13, 2021 Share #6 Posted April 13, 2021 (edited) I'll bet Leica is in a frenzy right now, frantically unboxing and checking all the 28 Summicrons they have on hand in Wetzlar. Same for Leica stores around the globe. Edited April 13, 2021 by Herr Barnack Link to post Share on other sites More sharing options...
photonc Posted April 13, 2021 Author Share #7 Posted April 13, 2021 Advertisement (gone after registration) Thanks for the Input. I am on the fence on what to do. The lens is coded as a 35 and also the focus scale is of course also off. I guess I could keep and buy another but worry it might not actually be collectible. Link to post Share on other sites More sharing options...
photonc Posted April 13, 2021 Author Share #8 Posted April 13, 2021 The outer box SN matches the front SN but the insert inspection card has an entirely different SN. I'm guessing someone out there received a 35 cron with a 28 stamp. 1 1 Link to post Share on other sites More sharing options...
helged Posted April 13, 2021 Share #9 Posted April 13, 2021 7 minutes ago, photonc said: The outer box SN matches the front SN but the insert inspection card has an entirely different SN. I'm guessing someone out there received a 35 cron with a 28 stamp. In this case, two winners...! Link to post Share on other sites More sharing options...
Casey Jefferson Posted April 13, 2021 Share #10 Posted April 13, 2021 56 minutes ago, Herr Barnack said: I'll bet Leica is in a frenzy right now, frantically unboxing and checking all the 28 Summicrons they have on hand in Wetzlar. Same for Leica stores around the globe. Being the manufacturer, they can stamp whatever they want on the barrel, and purposely make a collectable lens... Link to post Share on other sites More sharing options...
adan Posted April 13, 2021 Share #11 Posted April 13, 2021 Pretty weird - sounds like the whole base ring (with DoF scale and 6-bit code) are interchangeable parts between 35 (Summilux? Summicron?) and the 28 Summicron. Not totally surprising - since the Summarit line (and the 21/24 Elmarit-M ASPHs) saved some costs by using common parts, where possible. Frankly, a 35mm DoF scale is probably more useful for figuring 28mm DoF on digital - most people already recommend using a smaller aperture than the scale (which is designed for letter-sized prints from film) suggests, to actually get things apparently sharp at the extremes. But the 28 mis-identified by 6-bit code (and frameline selection) as a 35 may result in "wrong" corrections for color edge stains or vignetting. Link to post Share on other sites More sharing options...
photonc Posted April 13, 2021 Author Share #12 Posted April 13, 2021 So I had my test certificates mixed up (I also bought a 28SL). The SN matches on the outer box, inspection card and lens. Link to post Share on other sites More sharing options...
onasj Posted April 13, 2021 Share #13 Posted April 13, 2021 25 minutes ago, photonc said: So I had my test certificates mixed up (I also bought a 28SL). The SN matches on the outer box, inspection card and lens. Sounds like someone just grabbed the wrong component during assembly. Amazing that inspection didn't catch the error though! Can you post a photo or three? Link to post Share on other sites More sharing options...
photonc Posted April 13, 2021 Author Share #14 Posted April 13, 2021 22 minutes ago, onasj said: Sounds like someone just grabbed the wrong component during assembly. Amazing that inspection didn't catch the error though! Can you post a photo or three? 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! 3 2 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/319879-manufacturing-error-28-cron-labeled-as-35/?do=findComment&comment=4180654'>More sharing options...
photonc Posted April 13, 2021 Author Share #15 Posted April 13, 2021 Let me know if you want other views. I'm probably going to exchange it tomorrow unless someone wants to make me an offer 😁 Link to post Share on other sites More sharing options...
onasj Posted April 13, 2021 Share #16 Posted April 13, 2021 1 hour ago, photonc said: Let me know if you want other views. I'm probably going to exchange it tomorrow unless someone wants to make me an offer 😁 Herr Barnack could offer you $0.5 billion, thereby creating a win-win situation for both of you! 1 Link to post Share on other sites More sharing options...
photonc Posted April 13, 2021 Author Share #17 Posted April 13, 2021 3 minutes ago, onasj said: Herr Barnack could offer you $0.5 billion, thereby creating a win-win situation for both of you! 🤣 Link to post Share on other sites More sharing options...
250swb Posted April 13, 2021 Share #18 Posted April 13, 2021 It's only collectible if it still works, and this won't work properly so it's junk. Forget everybody wetting themselves, this is entirely the wrong components not just an engraving error. 1 Link to post Share on other sites More sharing options...
photonc Posted April 13, 2021 Author Share #19 Posted April 13, 2021 1 minute ago, 250swb said: It's only collectible if it still works, and this won't work properly so it's junk. Forget everybody wetting themselves, this is entirely the wrong components not just an engraving error. Yeah, planning to just send it back. Very interesting though. Link to post Share on other sites More sharing options...
Robert Blanko Posted April 13, 2021 Share #20 Posted April 13, 2021 Did you carefully check whether it is one of the legendary Bi-Elmars - or, more specifically, Bi-Crons? 🤔😏 1 Link to post Share on other sites More sharing options...
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