hunz Posted July 17, 2011 Share #1 Posted July 17, 2011 Advertisement (gone after registration) I assume Leica screw lenses will work on M cameras. eg. 5cm/3.5 Elmar lens screw via an S to M adapter? Anyone got photos of their set-up and photos from this lens? Link to post Share on other sites More sharing options...
Advertisement Posted July 17, 2011 Posted July 17, 2011 Hi hunz, Take a look here Leica Screw lenses on M8?. I'm sure you'll find what you were looking for!
johnloumiles Posted July 17, 2011 Share #2 Posted July 17, 2011 [ATTACH]268442[/ATTACH] W/ Canon 50mm1.5 Link to post Share on other sites More sharing options...
hunz Posted July 17, 2011 Author Share #3 Posted July 17, 2011 thanks John, nice set-up can anyone post pics with a 5cm/3.5 Elmar, and shots taken from this lens? Link to post Share on other sites More sharing options...
Julian H Posted July 17, 2011 Share #4 Posted July 17, 2011 Hi Have a look here. Also, on the M8 forum there is a super thread worth looking at called "M8 and old glass" Cheers, Julian Link to post Share on other sites More sharing options...
hunz Posted July 18, 2011 Author Share #5 Posted July 18, 2011 thanks julian does this lens have the similar annoying problem with the vintage 50/2.8 collapsible lens, where after you lock it in place (extended), the lens still moves/rotates when you try to change aperture settings? - i found this really annoying as you have to hold the front of the lens to twist the aperture ring, hence needed both hands to do it. can anyone confirm this is the case with the f3.5 elmar? Link to post Share on other sites More sharing options...
250swb Posted July 18, 2011 Share #6 Posted July 18, 2011 does this lens have the similar annoying problem with the vintage 50/2.8 collapsible lens, where after you lock it in place (extended), the lens still moves/rotates when you try to change aperture settings? That is just a poorly serviced lens. With any of the collapsible LTM (or M) lenses turning the aperture ring should not turn the lens barrel. The aperture ring should be free to turn without much friction, and the focusing mechanism should be tight enough not to wander. Steve Link to post Share on other sites More sharing options...
hunz Posted July 18, 2011 Author Share #7 Posted July 18, 2011 Advertisement (gone after registration) hmmm... i remember checking out at least 2 of these a few years back at secondhand shops and both moved when I tried to change aperture. the shop assistant (quite vintage himself, speaking like a leitz expert) retorted that it was normal. and the only ones that didn't exhibit this behaviour was the M6J 50/2.8 and ones made after it Link to post Share on other sites More sharing options...
250swb Posted July 18, 2011 Share #8 Posted July 18, 2011 The only lenses I can go on are my 50mm Elmar M, 50mm Summitar LTM, and 5cm f3.5 Elmar LTM, and none of them turn the lens barrel when adjusting the aperture. That said when I got my Summitar the aperture ring was very stiff indeed. So I carefully ran some naphtha (lighter fuel) into the gap and worked the ring back and forth. This worked for a while until the old grease firmed up again, so I reasoned I need some proper lube in there. I repeated the naphtha treatment and then followed it with some 3-in-1 oil. Just a little on the gap and work it back and forth and its been slick and smooth for over a year now. You just need to re-invigorate the grease, but don't overdo the oil. Steve Link to post Share on other sites More sharing options...
scsambrook Posted July 18, 2011 Share #9 Posted July 18, 2011 As for the lens focusing mount moving when adjusting the aperure on collapsible lenses - the Summar, Summitar and Summicron collapsible 50mm lenses have non-rotating (sometimes called 'rectilinear') mounts so there's never such a problem with them. As for the Elmars, whether A36 or original E39 mounts, I think it's very, very rare to find one which avoids the problem of altering the distance when changing the aperture, whether in 'perfect' condition or not. The focusing movement would need to very stiff, I believe. Maybe 250swb has a happy combination on his lenses! The click stops on the E39 designs actually add to the problem, I think. The shop assistant Hunz spoke to was actually quite correct based on my own encounters. The 'late' collapsible Elmar-M design is a rectilinear design not unlike the Summar, Summitar and Summicron collapsibes.. Over the years I've handled enough them to claim some relevant experience. The only certain way to avoid the problem on the A36 mounts is to hold the front rim with a finger and thumb while using another finger to slide the aperture lever. (Try thumb + middle finger to hold, forefinger to slide lever:)) Link to post Share on other sites More sharing options...
hunz Posted July 20, 2011 Author Share #10 Posted July 20, 2011 Thank you all. I am forever grateful Link to post Share on other sites More sharing options...
Washington Posted July 20, 2011 Share #11 Posted July 20, 2011 I use a lot of 39 mm to M-Bayonet adapters… the quality far exceeds the cheap ones: you get what you pay for: CameraQuest Home Page Link to post Share on other sites More sharing options...
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