TRIago Posted March 12, 2013 Share #1 Â Posted March 12, 2013 Advertisement (gone after registration) I didn't see anyone talking about it. Do you guys know if someone have tried it? Specially the 50mm Elmar-M. Â Thiago. Quote Link to post Share on other sites More sharing options...
Advertisement Posted March 12, 2013 Posted March 12, 2013 Hi TRIago, Take a look here Collapsible lens on leica m240. I'm sure you'll find what you were looking for!
bybrett Posted March 12, 2013 Share #2 Â Posted March 12, 2013 I didn't see anyone talking about it.Do you guys know if someone have tried it? Specially the 50mm Elmar-M. Â Thiago. Â If it's in the manual lens detection list it's ok? Quote Link to post Share on other sites More sharing options...
Jay B Posted March 13, 2013 Share #3 Â Posted March 13, 2013 The acceptable lens list is in the M manual: http://us.leica-camera.com/assets/file/download.php?filename=file_7536.pdf Quote Link to post Share on other sites More sharing options...
lct Posted March 13, 2013 Share #4  Posted March 13, 2013 Manual, page 147: « Can be used but with a risk of damaging the camera or lens: Lenses with retractable tube can only be used with the tube extended, i.e. their tube must never be retracted into the Leica M. ». Quote Link to post Share on other sites More sharing options...
rramesh Posted March 13, 2013 Share #5 Â Posted March 13, 2013 The Elmar-M is already an M mount lens so there should be no problem. Are you referring to the older Elmars? Quote Link to post Share on other sites More sharing options...
brill64 Posted March 13, 2013 Share #6 Â Posted March 13, 2013 is the throat of the M shallower than the M9 or does this refer to air pressure exerted within the lens chamber when retracting a collapsible on-camera & damaging something? Quote Link to post Share on other sites More sharing options...
marknorton Posted March 13, 2013 Share #7 Â Posted March 13, 2013 Advertisement (gone after registration) I haven't tried it and my camera has gone back to Solms but the standard advice with the Elmar is to only mount or remove the lens when it's extended and to only retract the lens while it is mounted. Quote Link to post Share on other sites More sharing options...
UliWer Posted March 13, 2013 Share #8 Â Posted March 13, 2013 You may find more on the topic here: Â http://www.l-camera-forum.com/leica-forum/leica-m9-forum/130720-leica-m8-m8-2-m9-m9p-4.html#post2295530 Quote Link to post Share on other sites More sharing options...
chris_tribble Posted March 13, 2013 Share #9 Â Posted March 13, 2013 Current Elmar 50 / 2.8 works very well on the M-240. Same as on the M9 and M8 2 Quote Link to post Share on other sites More sharing options...
lct Posted March 13, 2013 Share #10 Â Posted March 13, 2013 Current Elmar 50 / 2.8 works very well on the M-240. Same as on the M9 and M8 Do you mean it can be retracted safely when mounted on the body? Quote Link to post Share on other sites More sharing options...
UliWer Posted March 13, 2013 Share #11 Â Posted March 13, 2013 Current Elmar 50 / 2.8 works very well on the M-240. Same as on the M9 and M8 Â A lens works if you can make a proper photo with it - and there is no doubt, that you can do this with any Elmar and any collapsible lens which fits the bayonet or can be adapted to it. Â Though have you had a chance to watch if the tube scratches the wheel to move the rangefinder mechanism if you collapse it? With a film M you can look from the rear - with a digital M you can't. So if one does not know what happens, it might be wise to say that one does not know and perhaps Leica's caveat not to collapse it might be justified - even if some better explanation from Leica's side would be helpful. Quote Link to post Share on other sites More sharing options...
sdk Posted March 13, 2013 Share #12  Posted March 13, 2013 The new manual Page 147 states that the only lens you can safely collapse into the Leica M is the 90mm Macro Elmar M. ALL other collapsibles risk damaging the camera and lens if collapsed. Older 90mm Elmar M lenses (manufactured from 1954-1968) cannot be used at all. The New Leica M’s list of restrictions is exactly the same as the list in the Leica M9/M9P manual on Page 110. Quote Link to post Share on other sites More sharing options...
sm23221 Posted March 13, 2013 Share #13 Â Posted March 13, 2013 ALL other collapsibles risk damaging the camera and lens if collapsed. Â That's a very vague statement to me. For the 50/2.8 it should either be true or false. I'm not sure what other risk there is. Either it damages the sensor or it doesn't! Seems like Leica doesn't want to assume liability and is being vague for some reason. 2 Quote Link to post Share on other sites More sharing options...
TRIago Posted March 13, 2013 Author Share #14  Posted March 13, 2013 A lens works if you can make a proper photo with it - and there is no doubt, that you can do this with any Elmar and any collapsible lens which fits the bayonet or can be adapted to it. Though have you had a chance to watch if the tube scratches the wheel to move the rangefinder mechanism if you collapse it? With a film M you can look from the rear - with a digital M you can't. So if one does not know what happens, it might be wise to say that one does not know and perhaps Leica's caveat not to collapse it might be justified - even if some better explanation from Leica's side would be helpful.  Yeah. That's the point. I've seen the manual but still, a better explanation would help. Quote Link to post Share on other sites More sharing options...
jaapv Posted March 13, 2013 Share #15 Â Posted March 13, 2013 That's a very vague statement to me. For the 50/2.8 it should either be true or false. I'm not sure what other risk there is. Either it damages the sensor or it doesn't! Seems like Leica doesn't want to assume liability and is being vague for some reason. The sensor/shutter distance is easily measured - you'll find there is no chance of hitting them with a collapsed lens.... 1 Quote Link to post Share on other sites More sharing options...
lct Posted March 13, 2013 Share #16 Â Posted March 13, 2013 The sensor/shutter distance is easily measured - you'll find there is no chance of hitting them with a collapsed lens.... Not a sensor problem i guess but i don't know if the shutter distance has changed in the M240. Any idea? Also there is yet little room between the "tube" of the last 50/2.8 and the roller cam of previous Ms so it would be useful to know if something may have changed in the M240 from this standpoint. Quote Link to post Share on other sites More sharing options...
sdk Posted March 13, 2013 Share #17  Posted March 13, 2013 RE the risk, I wonder how much wobble is there with older collapsible 50mms? It could be that if you don’t push the lens tube in precisely straight, the tube is more likely to run into the RF traveler & roller at the top or the bottom of the camera chamber. Anyway, why take unnecessary risks? Just leave the lens in the out position and your expensive camera and lens will be safe. 1 Quote Link to post Share on other sites More sharing options...
UliWer Posted March 13, 2013 Share #18 Â Posted March 13, 2013 ... Also there is yet little room between the "tube" of the last 50/2.8 and the roller cam of previous Ms so it would be useful to know if something may have changed in the M240 from this standpoint. Â The caveat about collapsibe lenses in the manual is not new, the manual for the M8 and M9 were exactly the same on this topic. Since the M8 was there and people read the manual there have been questions about it here. So there is no evidence that something has been changed on the M 240. Â I doubt if the position of the roller cam can be changed at all, for otherwise the rangefinder coupling would not work properly anymore. Since the times of the Leica II the roller cam should always have had the same position towards the lenses. Â The idea not to look at the shutter, where everybody (me included) searched for the problem, but to pay attention instead on the distance between the retracted tube and the roller came after someone reported that an 50mm Elmar-M could not be collapsed on an M-E. I said: this makes no sense, since the M-E is the same as M 9, why should there be any problems now? Â Then a member in the german forum showed the photos of the collision between tube and roller. I tried myself with an M6 and found out that my example of a 50mm Elmar-M didn't touch it, but was very close: less than a millimeter space. There are variations in so many lenses, and the tube of the Elmar-M has some play when you move it. So I say: it is possible, that the tube touches the roller. It was always possible since the time of the Leica II, since any former type of a Leica M - but there has been only a warning by Leica since the M8. Â Everybody can decide: Leica is giving the warning, we can ignore it. People can describe the possible problem, we can look elsewhere and say the tube won't hit the sensor. If we know that the tube may hit the roller, we can say: no problem, it won't do harm. I collapsed many lenses into many camera bodies, I didn't feel or see any harm. Obviously Barnack and Berek didn't see any harm when the constructed the rangefinder coupling with collapsible lenses and didn't foresee the possibility that the tube may touch the roller. Â It is not the aim of this Forum to forbid anything, it can just try to give information. 1 Quote Link to post Share on other sites More sharing options...
lct Posted March 13, 2013 Share #19  Posted March 13, 2013 ...There are variations in so many lenses, and the tube of the Elmar-M has some play when you move it. So I say: it is possible, that the tube touches the roller. It was always possible since the time of the Leica II, since any former type of a Leica M - but there has been only a warning by Leica since the M8... The tube has changed since 1994. Its bottom is larger that it used to be so the room left is very small indeed. Here on my M6J. Are we sure that nothing has changed in the M240 since then? This was just my question. 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/200419-collapsible-lens-on-leica-m240/?do=findComment&comment=2270302'>More sharing options...
UliWer Posted March 13, 2013 Share #20 Â Posted March 13, 2013 The tube has changed since 1994. Its bottom is larger that it used to be so the room left is very small indeed. .... Â Therefore Customer Service at Solms changes the tube for the Elmar-M on request: the black ridge at the end of the tube which has a little bit bigger diameter than the tube itsself is removed. Though there are older tubes with irregularities at the ends. Leitz/Leica made some hundred thousand collapsible lenses - you cannot be sure about each of them. Quote Link to post Share on other sites More sharing options...
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