wlaidlaw Posted January 15, 2014 Share #21 Posted January 15, 2014 Advertisement (gone after registration) Leica do not mill anything across a screw head, they just replace your old flange with a new one, there is no 'engineering' involved. For the lenses where the flange has a screw head in the way they can't do anything. Steve Steve, That is the advantage of using Malcolm Taylor. I will post the image of my Summicron-C 40mm tomorrow, which Leica will not code but he can and without leaving out flange screws. The coding works perfectly on my M240. I have had it coded as a 50mm lens, as I did not want to chop it about, like you have to if you want to code as a 35mm. I am perfectly happy using the 50mm framelines and estimating outside them. I have coded it as a Summicron III, whereas I have coded my 50/2 Planar as a Summicron IV, so I can tell at a later point, which lens I have used. Or at least I will be able to, when Phase One get their finger out and start reading the maker’s notes on the M240’s DNGs properly. I will have to give them another nudge. Wilson Link to post Share on other sites More sharing options...
Advertisement Posted January 15, 2014 Posted January 15, 2014 Hi wlaidlaw, Take a look here Lens calibration for M240. I'm sure you'll find what you were looking for!
wlaidlaw Posted January 15, 2014 Share #22 Posted January 15, 2014 Praemonitus Praemunitus http://www.l-camera-forum.com/leica-forum/customer-forum/221375-after-3-years-malcolm-taylors-will-6.html I am totally sure MT is 100% trustworthy. I am sending him next year, the IIF and 50 Summitar for CLA , which my father bought new in New York in 1953, so you can imagine how precious they are to me. I have not a single qualm about doing that. MT will often take longer than he has estimated for a job, occasionally quite a bit longer. The results are always worth waiting for. He does not usually phone to give updates, unless you specifically ask him to do so in the letter accompanying your Leica bits, when you send them to him. He must now be rather elderly and I feel that quite a bit of the modern world such as email and online tracking numbers, may have passed him by. On the other hand, he is one of the world’s top experts on older Leicas. Leica UK certainly used to use him to repair very valuable Leica historica, that was sent to them and where they did not have the expertise in house. Wilson Link to post Share on other sites More sharing options...
lawman Posted January 16, 2014 Share #23 Posted January 16, 2014 What is the approx. cost to do a flange and coding of an older Leica M mount lens? Link to post Share on other sites More sharing options...
wlaidlaw Posted January 16, 2014 Share #24 Posted January 16, 2014 What is the approx. cost to do a flange and coding of an older Leica M mount lens? Malcolm Taylor charges about £80 but this includes the back focal distance being set to exactly 27.8mm and a focus check on an optical bench. I cannot be precise as he did other work for me and you just get a hand written total invoice, torn out of a duplicate book, with no breakdown. He does now take cards, which makes life easier, especially for overseas customers. Wilson Link to post Share on other sites More sharing options...
wlaidlaw Posted January 16, 2014 Share #25 Posted January 16, 2014 Here are some pics and measurements. Firstly to the extent I can measure the slots, Malcolm Taylor’s are identical to ones done by Leica themselves. The slots are a rectangle measuring 1.35mm x 2.45mm with rounded corners at I would estimate 0.8mm radius. I think the slots are parallel sided i.e they are not a radius of a circle with its centre at the axis of the lens. Wilson 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! 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/218275-lens-calibration-for-m240/?do=findComment&comment=2510546'>More sharing options...
lawman Posted January 16, 2014 Share #26 Posted January 16, 2014 Wilson - thank you for posting the photos - it looks quite amazing to me the way he milled right across the screw head!! The pits do indeed look identical to the ones done by Leica. I think the Jin pits are fractionally smaller and this could be the problem. I have thought about drilling round cuts in the middle of my pits a la Novoflex - has anyone tried this out? Have you any idea of the type of black paint he used on your flanges? All the best, Larry Link to post Share on other sites More sharing options...
wlaidlaw Posted January 16, 2014 Share #27 Posted January 16, 2014 Advertisement (gone after registration) Larry, The black unlike the white codes, looks as if it might be marker pen rather than paint. I know for certain Pentel Sharpie black works well. I am going to put a second coat on my MT coded lenses on the black slots, using a Sharpie. Whatever MT uses, it looks slightly more matt than what Leica uses. Wilson Link to post Share on other sites More sharing options...
lawman Posted January 16, 2014 Share #28 Posted January 16, 2014 Wilson - we don't seem to have any such animal as a Pentel "Sharpie" on this side of the pond - we do have Sharpies but they are made by Sanford -- anyone know if this is the same thing? Larry Link to post Share on other sites More sharing options...
jdlaing Posted January 17, 2014 Share #29 Posted January 17, 2014 Wilson - we don't seem to have any such animal as a Pentel "Sharpie" on this side of the pond - we do have Sharpies but they are made by Sanford -- anyone know if this is the same thing? Larry Sanford should work fine. That is the real Sharpie. Link to post Share on other sites More sharing options...
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