Infantasy Posted March 28, 2020 Share #141  Posted March 28, 2020 Advertisement (gone after registration) On 2/19/2020 at 4:00 AM, Al Brown said: I have successfully 6-bit coded the Zeiss Biogon 21/2.8 to 11134. First with a sharpie for trial and error and when the position was right and the display was showing 21/2.8 I finished with acrylic paint. The code for 11134 Elmarit-M is just one bar far right. White codes do not matter. PS. Love the 11134 more than the "Zeiss recommended" 11809. PPS. The coding fixes the vignetting and slight purple fringe of the lens if used without it. 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! My experience was the paint would be worn out soon or later. Replace the flange may be the only solution if you can find a suitable one. Quote Link to post Share on other sites More sharing options...
Advertisement Posted March 28, 2020 Posted March 28, 2020 Hi Infantasy, Take a look here M lens codes. I'm sure you'll find what you were looking for!
cp995 Posted April 7, 2020 Share #142  Posted April 7, 2020 (edited) Am 28.3.2020 um 04:26 schrieb Infantasy: My experience was the paint would be worn out soon or later. Replace the flange may be the only solution if you can find a suitable one. No, with some lenses it won't! Most of the Cosina ZM and VM lenses have a deepening in the bajonett, which protects the paint. You can see it on the photo from our collegue Al Brown and also here:https://www.kenrockwell.com/zeiss/zm/21mm-f28.htm#mex  Edited April 7, 2020 by cp995 2 Quote Link to post Share on other sites More sharing options...
KEL Posted April 8, 2020 Share #143  Posted April 8, 2020 (edited) Thanks for sharing, I will try myself (have the same lens on my M10). Can you help me, how many millimiters are between the screw and the marking? Edited April 8, 2020 by KEL Mistake Quote Link to post Share on other sites More sharing options...
250swb Posted June 26, 2020 Share #144  Posted June 26, 2020 (edited) On 4/7/2020 at 1:53 PM, cp995 said: No, with some lenses it won't! Most of the Cosina ZM and VM lenses have a deepening in the bajonett, which protects the paint. You can see it on the photo from our collegue Al Brown and also here:https://www.kenrockwell.com/zeiss/zm/21mm-f28.htm#mex  +1 The whole 'Sharpie' ideas was doomed in the first place, and why people couldn't see it is baffling. It was hailed by some because they found the best Sharpie to use, derided by others because their Sharpie was crap, but the end result is that it is only people who never changed their lenses who were giving out the rave reviews! Edited June 26, 2020 by 250swb Quote Link to post Share on other sites More sharing options...
carbon_dragon Posted August 5, 2020 Share #145 Â Posted August 5, 2020 It seems to me that this is a problem that could be solved (the whole sharpie thing). Perhaps by stickers which have adhesive that peels off easily? Or would that keep the mount from properly mounting? Or couldn't people making M lenses just code them? I mean it might not matter for people using them on Sony or Fuji bodies, but it could help on others. Would Leica get after them for marking the lenses based on what Leica lens they resemble? 1 Quote Link to post Share on other sites More sharing options...
AndreasG Posted August 5, 2020 Share #146 Â Posted August 5, 2020 Seems, Leica still keeps a patent that protects their coding system, whereas the patents for the M-flange are expired meanwhile and therefore are copied by Cosina/Voigtlaender/Zeiss and the 7/TTartisan makers. Quote Link to post Share on other sites More sharing options...
adan Posted August 5, 2020 Share #147 Â Posted August 5, 2020 Advertisement (gone after registration) 3 hours ago, carbon_dragon said: It seems to me that this is a problem that could be solved (the whole sharpie thing). Perhaps by stickers which have adhesive that peels off easily? Or would that keep the mount from properly mounting? Two problems there, having to do with the tightness of the lens seating on the camera. It would probably physically mount OK (although perhaps slightly tight or stiff to lock into position) - but the thickness of a sticker (perhaps 0.1mm) would be enough to prevent the lens perfectly focusng all the way to infinity. It would act as a microscopic extension tube or shim between the lens and camera. And the same tight fit-and-finish means the sticker would eventually get scrubbed and scraped and worn away with every lens change, just like Sharpieâ„¢ ink itself. 1 Quote Link to post Share on other sites More sharing options...
RoySmith Posted August 5, 2020 Share #148  Posted August 5, 2020 I’ve had the 75mm/1.4 and a 90mm/2.8 coded by Leica New Jersey and was very happy with the result. More expensive than DIY methods but more reliable. 1 Quote Link to post Share on other sites More sharing options...
Gerbs Posted September 9, 2020 Share #149 Â Posted September 9, 2020 I just spent too much time trying to find the 6-bit lens encoding for the new Thambar... as I am getting a screw mount adapter TODAY with encoding recesses cut into it, and want to update my adapter. So, for anyone else on a search, I turned up 001100 or WWBBWW as the coding (0=white=W, 1=black=B). Saw it on a video from 2017: https://www.reddotforum.com/content/2017/12/look-new-leica-thambar-m-90mm-f2-2/ Surprisingly the coding wasn't listed on any of the coding tables I saw, which is why it took "too much time" to find it. And none of the lens photos I saw showed the back with the coding, fortunately I saw the video... Keywords for searches to find this post: Thambar coding, Thambar 6-bit encoding, Thambar screw thread adapter I purchased two screw mount adapters from Fotodiox. They are excellent. Very nicely finished and deburred. And they have machined in slots for the encoding. HIGHLY recommended for their adapters. They make them without the encoding too. The manufacturing quality is very high, and I worked as a toolmaker and machinist for a lot of years, so I know good metal work when I see it and handle it. PS: Pete asked me to "please notify Admin that the link to where the table had resided is broken." 1 Quote Link to post Share on other sites More sharing options...
wlaidlaw Posted November 1, 2020 Share #150  Posted November 1, 2020 Does anyone know where there is an up-to-date list of 6 bit lens codes. The most recent lists I can find, don't include any lenses released after 2008/9. I have purchased a couple of the 7/TT Artisans fast lenses recently and I would like to code them. As these fast wide lenses are only very occasional users, I could not justify a Leica lens purchase for these, unlike what I have for all my main user lenses, which are Leica, LTM, M, R and L. Wilson  Quote Link to post Share on other sites More sharing options...
adan Posted November 1, 2020 Share #151 Â Posted November 1, 2020 With the caveat that for wide-angles, the exact optical design may make a big difference when it comes to lens coding and removing color edge artifacts, and thus Leica's coding won't necessarily work for others' 21/24/28mm f/1.4s, to reduce green- or red-edge problems (!!!!). I.E. not all 21 f/1.4s are created equal: The La Vida Leica list is from 2013 and has the 21/24 Summilux and 50 f/0.95: https://lavidaleica.com/content/leica-lens-codes Popflash Photo has pictures of the coding on: 35 Summilux ASPH FLE is the same as non-FLE (011101) 28 Summilux (110110) 50mm APO-Summicron (weirdly - this does not match the LaVidaLeica list (??) 101001 ) 75 Noctilux (111010) 28 Summaron f/5.6 (001011) 90 Thambar (maybe? bad angle of view - 001100) Other images show: 35 Summarit f/2.4 (010001) 50 Summarit f/2.4 (010010) 75 Summarit f/2.4 (010011) 90 Summarit f/2.4 (010100) NB: these are the codes as seen held at the 12 o'clock position, reading L to R.... 2 1 Quote Link to post Share on other sites More sharing options...
wlaidlaw Posted November 1, 2020 Share #152  Posted November 1, 2020 Many thanks Andy. Between the two sources, that is exactly what I needed. Of course, now having the information, I have found the paint in my fine white line paint marker, has set solid, so I will have order a new one from Amazon. Wilson Quote Link to post Share on other sites More sharing options...
Danner Posted December 30, 2020 Share #153  Posted December 30, 2020 On 11/1/2020 at 5:32 AM, wlaidlaw said: Does anyone know where there is an up-to-date list of 6 bit lens codes. The most recent lists I can find, don't include any lenses released after 2008/9. I have purchased a couple of the 7/TT Artisans fast lenses recently and I would like to code them. As these fast wide lenses are only very occasional users, I could not justify a Leica lens purchase for these, unlike what I have for all my main user lenses, which are Leica, LTM, M, R and L. Wilson  Leica publishes a PDF of the lens codes.  You can download a PDF here: Leica US Lens Code Listing Download Quote Link to post Share on other sites More sharing options...
jdlaing Posted December 30, 2020 Share #154 Â Posted December 30, 2020 36 minutes ago, Danner said: Leica publishes a PDF of the lens codes. Â You can download a PDF here: Leica US Lens Code Listing Download All that is on that link is a list of lenses Leica can code for you, not the codes. Quote Link to post Share on other sites More sharing options...
Simone_DF Posted January 1, 2021 Share #155  Posted January 1, 2021 On 11/1/2020 at 12:32 PM, wlaidlaw said: Does anyone know where there is an up-to-date list of 6 bit lens codes. The most recent lists I can find, don't include any lenses released after 2008/9. I have purchased a couple of the 7/TT Artisans fast lenses recently and I would like to code them. As these fast wide lenses are only very occasional users, I could not justify a Leica lens purchase for these, unlike what I have for all my main user lenses, which are Leica, LTM, M, R and L. Wilson  Have you tried sending an email to 7 Artisans to see what they suggest? Quote Link to post Share on other sites More sharing options...
wlaidlaw Posted January 1, 2021 Share #156  Posted January 1, 2021 3 hours ago, Simone_DF said: Have you tried sending an email to 7 Artisans to see what they suggest? If you read a bit further up this thread, you would see that I already have all the info I need. It is more to get the correct EXIF on the meta data than the in camera correction. I use a template in Capture One to do that. I generally try a few different codes to see which I prefer but in that In camera correction is fairly mild, I usually stick to the correct focal length and try different generations and apertures of lenses at that length. Wilson Quote Link to post Share on other sites More sharing options...
Danner Posted January 4, 2021 Share #157  Posted January 4, 2021 On 12/30/2020 at 8:54 AM, jdlaing said: All that is on that link is a list of lenses Leica can code for you, not the codes. OK, I got a bit confused.  My bad. 1 Quote Link to post Share on other sites More sharing options...
adan Posted April 10, 2021 Share #158 Â Posted April 10, 2021 By the way - the lens list linked on the first post of this thread is reporting "404" - needs update or repair. Â Quote Link to post Share on other sites More sharing options...
SrMi Posted April 14, 2021 Share #159 Â Posted April 14, 2021 On 4/9/2021 at 9:44 PM, adan said: By the way - the lens list linked on the first post of this thread is reporting "404" - needs update or repair. Â While waiting for a fix, the list of codes can be retrieved from the archived page: https://web.archive.org/web/20170616085638/https://www.l-camera-forum.com/leica-news/leica-lens-codes/ 2 Quote Link to post Share on other sites More sharing options...
lct Posted April 14, 2021 Share #160  Posted April 14, 2021 Not sure what you're after folks. Is it this? Leica M Lens Codes 1 Quote Link to post Share on other sites More sharing options...
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