JPH1962 Posted December 4, 2009 Share #1 Posted December 4, 2009 Advertisement (gone after registration) Hi there On my M9 I want to use a 35 Lux (the small one with series VII filters). What I saw so far is just beautifull! Well - some of them dont focus til infinity on the M8 and M9, and can be modified by Leica. My question: does anybody knows what they do exactly? has anybody a picture available for me to see? THanks a lot! JPH Link to post Share on other sites More sharing options...
Advertisement Posted December 4, 2009 Posted December 4, 2009 Hi JPH1962, Take a look here 35 Summilux Series VII on M9. I'm sure you'll find what you were looking for!
gravastar Posted December 4, 2009 Share #2 Posted December 4, 2009 Part of the back of the circular shield on the rear of the lens has to be removed. As far as I can tell there is some tolerance involved in this. Not all lenses have the problem of not quite focusing to infinity. The Summilux I have worked on some M8s but not all that we tried. There is a tolerance in the position of the camera's internal chamber and one side or the other can hit the shield when the lens is focused at infinity. There have been posts on this board showing how much of the shield has to be removed. I don't have a picture of my lens, you've reminded me I must get it back from being modified . Bob. Link to post Share on other sites More sharing options...
JPH1962 Posted December 4, 2009 Author Share #3 Posted December 4, 2009 thanks - that confirms my thoughts... :-) May be I foind some pics! JPH Link to post Share on other sites More sharing options...
Ario Arioldi Posted December 4, 2009 Share #4 Posted December 4, 2009 The pre-asph Summilux under question has got a black shroud which is there to protect the lens when it is fully extended to the infinity focus position (it is a cylindical black element in between the glass and the brass cam). In some case this element may interfere with the inner portion of the camera mount and so prevent the lens to reach the infinity focus position, and may be cause same damage. The M8 is more critical in this respect because the inner part of the mount is smaller then in the M9: I have one of these Summilux which mounts perfectly on M9 but not on M8 but in general there is not a fixed rule and my suggestion is to check case by case. As a matter of fact even the warning which is now in the Leica manuals is not completely correct because it says that the problem is only with same Canadian lens but I have seen it also in same German sample. To do the check without any risk you need to mount the lens assuring that it is focussed at the shortest distance and then only after mounting, gently move the focus ring towards infinity. In case of any resistance, stop: the lens has to be modifyied. Cheers, Ario Link to post Share on other sites More sharing options...
Ario Arioldi Posted December 4, 2009 Share #5 Posted December 4, 2009 Here you can see the shroud fully extended. Cheers, Ario Link to post Share on other sites More sharing options...
okram Posted December 4, 2009 Share #6 Posted December 4, 2009 "The M8 is more critical in this respect because the inner part of the mount is smaller then in the M9...." I did not know that...I thought they are the same. What do you mean, exactly? Link to post Share on other sites More sharing options...
lars_bergquist Posted December 4, 2009 Share #7 Posted December 4, 2009 Advertisement (gone after registration) "The M8 is more critical in this respect because the inner part of the mount is smaller then in the M9...." I did not know that...I thought they are the same. What do you mean, exactly? The sensor chamber behind the lens have some bumps that protrude into it more than the corresponding bumps in the M9 -- which has of course a larger sensor which needs more leeway. The old man from the Optical Age Link to post Share on other sites More sharing options...
JPH1962 Posted December 4, 2009 Author Share #8 Posted December 4, 2009 @all thanks a lot - grazie mille! JPH Link to post Share on other sites More sharing options...
Recommended Posts
Archived
This topic is now archived and is closed to further replies.