cosmonaut Posted April 10, 2008 Share #1 Posted April 10, 2008 Advertisement (gone after registration) Has anyone here modified there 40mm Nokton to bring up the 35mm framelines on an M6? I have a link to someone on Flickr that has done it and it seems simple enough. It not a big deal with it as is, but I find the 35mm framlines more accurate than the 50mm. Link to post Share on other sites More sharing options...
Advertisement Posted April 10, 2008 Posted April 10, 2008 Hi cosmonaut, Take a look here Nokton 40mm frameline modification. I'm sure you'll find what you were looking for!
doubice Posted April 10, 2008 Share #2 Posted April 10, 2008 The lens’ bayonet lug, which activates the frame selector, has to be filed back a smidgeon. The 35mm lens setting is the ‘default’ setting of the frame selector system, where the selector does not move at all. I did this by filing small sections of the lug at a time, until the frame selector did not activate the 50mm setting. Care has to be taken so that no filings end up in the helical mount or the lens’ internals…… FYI – the lug that activates the frame selector is the one at 9 o’clock, with the lens in horizontal orientation and the bayonet facing you. It is the on the other side of the lens lock detent. Good luck, Jan Link to post Share on other sites More sharing options...
veraikon Posted April 10, 2008 Share #3 Posted April 10, 2008 Here is a link with an illustrated description (en francais) of the modification: summilux.net :: Voir le sujet - Modification Nokton 40mm 1,4 Link to post Share on other sites More sharing options...
cosmonaut Posted April 10, 2008 Author Share #4 Posted April 10, 2008 Thanks for the advise. I may give it a go. Link to post Share on other sites More sharing options...
doubice Posted April 10, 2008 Share #5 Posted April 10, 2008 Another hint - in the pictured modification, the lug was filed at an angle. I did mine by filing to shorten the lug; this is how all Leica mounts are set up. The longest lug is the one for the 28/90mm frame pair, 50mm is mid-length and 35mm the shortest. Best, Jan Link to post Share on other sites More sharing options...
Guest findwolfhard Posted April 10, 2008 Share #6 Posted April 10, 2008 Hello! You might use an engraver`s tool, like a "Dremel" or any other similar type of micro-high-speed-drill with a small tool bit. #DREMEL ONLINE SHOP you have better control,- good luck Wolfhard Link to post Share on other sites More sharing options...
doubice Posted April 11, 2008 Share #7 Posted April 11, 2008 Advertisement (gone after registration) Yes, a Dremel would be the tool of choice. Since we all need more than one hobby to stay sane in this world , I also dabble into model trains and have a few Dremel tools at the ready. It was a Dremel with a cut-off dic that I used. Best, Jan Link to post Share on other sites More sharing options...
bill Posted April 11, 2008 Share #8 Posted April 11, 2008 Can I be the dissenting voice here? Why do it? 35mm - Angle of view approx. 64 degrees 40mm - Angle of view approx. 57 degrees 50mm - Angle of view approx. 45 degrees So a nominal 7 degrees difference between 40 and 35, and a nominal 8 degrees difference between 40 and 50. Personally, I use this lens for street and occasional low light shots. I would rather have a bit more on the negative than a bit less. I shoot it as a "generous" 50mm as a result. Regards, Bill Link to post Share on other sites More sharing options...
howard_cummer Posted April 11, 2008 Share #9 Posted April 11, 2008 I have ground off the frame selector of my Nokton 40 SC to bring up the 35mm frame on my M8 and to my eye, the 35 frame on the M8 approximates more closely the field of view of the 40mm than the 35mm that it is designed for. Just my view, of course. Link to post Share on other sites More sharing options...
doubice Posted April 11, 2008 Share #10 Posted April 11, 2008 I have ground off the frame selector of my Nokton 40 SC to bring up the 35mm frame on my M8 and to my eye, the 35 frame on the M8 approximates more closely the field of view of the 40mm than the 35mm that it is designed for. Just my view, of course. Given the inaccuracy of the M8's frames, this is true. A 40mm lens is more at home with the M8's 35mm frame. I use a Canon RF 25mm lens, coded and on a 24/35mm adapter - surprisingly (or not.....), it just about matches the 24mm frame. Best, Jan Link to post Share on other sites More sharing options...
bill Posted April 11, 2008 Share #11 Posted April 11, 2008 Howard, Jan, I understand that with the M8, but the OP referred to an M6. That's why I don't understand. Regards, Bill Link to post Share on other sites More sharing options...
cosmonaut Posted April 11, 2008 Author Share #12 Posted April 11, 2008 It seems the 35mm framelines are more accurate and are about 100% fill. It's not a big problem to pull the lever over while shooting. I am sure in time I will get really comfortable with it. I just thoght if it was an easy DIY I would give it a go. Now. What's the worse that can happen if I fail? Link to post Share on other sites More sharing options...
Guest findwolfhard Posted April 13, 2008 Share #13 Posted April 13, 2008 Hello ! Worst case? Filings could be caught in focusing thread! best regs Wolfhard Link to post Share on other sites More sharing options...
Guest findwolfhard Posted April 13, 2008 Share #14 Posted April 13, 2008 ................ 35mm - Angle of view approx. 64 degrees 40mm - Angle of view approx. 57 degrees 50mm - Angle of view approx. 45 degrees So a nominal 7 degrees difference between 40 and 35, and a nominal 8 degrees difference between 40 and 50. ........................ Bill Hi Bill, from 57 to 64 ,- 7 difference, from 45 to 57 it seems to be closer to 12! Just my humble opinion, so theres some sense in it for me, best regards Wolfhard Link to post Share on other sites More sharing options...
bill Posted April 13, 2008 Share #15 Posted April 13, 2008 Hi Bill, from 57 to 64 ,- 7 difference, from 45 to 57 it seems to be closer to 12!Just my humble opinion, so theres some sense in it for me, best regards Wolfhard *stands in corner* Well spotted Wolfhard! Regards, Bill Link to post Share on other sites More sharing options...
Guest findwolfhard Posted April 13, 2008 Share #16 Posted April 13, 2008 *stands in corner* Well spotted Wolfhard! Regards, Bill Hi Bill, what would you expect from a bloody teacher? Best regards Wolf Link to post Share on other sites More sharing options...
bill Posted April 13, 2008 Share #17 Posted April 13, 2008 Hi Bill, what would you expect from a bloody teacher?Best regards Wolf ROTFL! But Sir... I did my homework, see...? 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! Can I go out and play now? Regards, Bill Link to post Share on other sites Simply register for free here – We are always happy to welcome new members! Can I go out and play now? Regards, Bill ' data-webShareUrl='https://www.l-camera-forum.com/topic/50274-nokton-40mm-frameline-modification/?do=findComment&comment=536621'>More sharing options...
Guest findwolfhard Posted April 14, 2008 Share #18 Posted April 14, 2008 Bill,- you may for this time only! But make sure you are back home at five! Wolfhard Gradgrind Link to post Share on other sites More sharing options...
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