luigi bertolotti Posted August 6, 2013 Share #21 Posted August 6, 2013 Advertisement (gone after registration) Never try to collapse an old Elmar 4.0 - 90 mm on digital Leica-Ms.It will ruin the sensor with its long tube. [ATTACH]391221[/ATTACH] This is a good advice... but, to be precise, in itself the length of the Elmar 90 (retracted) is not higher than the length of a retracted Elmar 50 : strange, but true... Link to post Share on other sites More sharing options...
Advertisement Posted August 6, 2013 Posted August 6, 2013 Hi luigi bertolotti, Take a look here Is it safe to collapse a 50mm Elmar?. I'm sure you'll find what you were looking for!
jaapv Posted August 6, 2013 Share #22 Posted August 6, 2013 Not really strange - it was designed not to hit the shutter of a film M. And the shutter-flange distance of a digital M and film M are approx. the same. Link to post Share on other sites More sharing options...
Guest Posted August 6, 2013 Share #23 Posted August 6, 2013 This is a good advice... but, to be precise, in itself the length of the Elmar 90 (retracted) is not higher than the length of a retracted Elmar 50 : strange, but true... Something else must be in the way, that it isn't possible to insert a Elmar 4.0 - 90 mm collapsible completely in a digital M. Maybe someone can check this with a cutaway model or X-rays? But it's good to know that the end of the tube can't reach the sensor. Link to post Share on other sites More sharing options...
luigi bertolotti Posted August 6, 2013 Share #24 Posted August 6, 2013 Something else must be in the way, that it isn't possible to insert a Elmar 4.0 - 90 mm collapsible completely in a digital M. Maybe someone can check this with a cutaway model or X-rays? But it's good to know that the end of the tube can't reach the sensor. Yes... I tried with care on my M8... and the problem is the diameter of the tube (with its blades to block the lens when extended) : too large for the M8 "mouth" - it interferes. Link to post Share on other sites More sharing options...
Westend_jon Posted August 12, 2013 Share #25 Posted August 12, 2013 Hi - I've tried this with my Elmar and it seems to be okay. What would happen if the shutter was released with the lens in the collapsed position? Link to post Share on other sites More sharing options...
jaapv Posted August 12, 2013 Share #26 Posted August 12, 2013 You would get a totally unsharp image.... Link to post Share on other sites More sharing options...
}{B Posted August 13, 2013 Share #27 Posted August 13, 2013 Advertisement (gone after registration) Am I correct in thinking that the 90mm F4 can be attached and used on a digital M providing it is not collapsed? The lens has an infinity lock which would help in preventing 'accidental' retraction. Link to post Share on other sites More sharing options...
Guest Posted August 13, 2013 Share #28 Posted August 13, 2013 ... Of course - and it is a fine lens with minimal aperture 32. Link to post Share on other sites More sharing options...
luigi bertolotti Posted August 15, 2013 Share #29 Posted August 15, 2013 Am I correct in thinking that the 90mm F4 can be attached and used on a digital M providing it is not collapsed? The lens has an infinity lock which would help in preventing 'accidental' retraction. Yes... you enjoy the collapse facility just for storage & carry....... anyway, always an appreciable lens, even if the uncollapsible "3 elements" is better . Link to post Share on other sites More sharing options...
Dikaiosune01 Posted October 16, 2013 Share #30 Posted October 16, 2013 In light of the another post that directed me to this tread... ... This is all good for the current Elmar-M; but what about the first generation Elmar? From what I've read and understand now... it is a good idea to put on / take off the lens while errected. That is because eventhough the space in the camera is enough for the un-erected lens, the process of taking it off and putting it on could angle the lens in a way that there is insufficient clearence. Seems reasonable. it sounds like playing operation... Can the first generation elmar be safely errected and un-errected when mounted on the 240? I also wonder about all the fear-mongering about the lens errection. What makes us so paranoid and cautious? Is it just hte price of the camera? The sentimental value? or is there soemthing more? Link to post Share on other sites More sharing options...
marknorton Posted October 25, 2013 Author Share #31 Posted October 25, 2013 The issue is that the lens can be inserted at an angle and could scratch the inside of the lens throat which is extremely expensive to replace because of the labour involved. That's why the recommendation is to only attach or remove the lens with the barrel extended. As for whether older versions can be used, I do not know. Link to post Share on other sites More sharing options...
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