davidmires Posted January 1, 2007 Share #1 Posted January 1, 2007 Advertisement (gone after registration) Ray Harms asked in another thread: how I am able to use the DR Summicron on the M8. I started to make a long explanation here, but it may be better to just direct everyone to view this thread to learn about the DR/M8 relationship: http://www.leica-camera-user.com/digital-forum/7165-m8-dual-range-summicron.html?highlight=DR+Summicron Basically, I had a well known Leica repair person cut off the close focusing part of the lens flange, and remove the stop between normal and close range: [ATTACH]20126[/ATTACH] What I probably didn't convey correctly, is that I wanted to have a smooth transition from the normal range of the flange to the new machined surface. As you can see on the jpg of my lens above, this was not done as precisely as I had assumed it would be. I can focus the lens to 3'-4", which is the close focusing limit of the normal range of the lens, but it hits a rough spot at that point. Another problem is that too much material was taken away, and the close range isn't coupled accurately. If the machining was done correctly, I would have correct rangefinder coupling down to .7m where the rangefinder cam would fall off of the flange. As it is, I can only focus accurately down to 3'-4", and stop down and guess at closer range... I still plan to correct this, perhaps with someone with more precise machining capabilities, or maybe a rigid Summicron flange would work. As it is though, I am pretty happy about being able to use the lens with the M8, and I don't regret making the mod, although it's not for the weak of heart... Link to post Share on other sites More sharing options...
Advertisement Posted January 1, 2007 Posted January 1, 2007 Hi davidmires, Take a look here DR Summicron / M8: not for the squeamish. I'm sure you'll find what you were looking for!
davidmires Posted January 1, 2007 Author Share #2 Posted January 1, 2007 Here are two photos taken with DR / M8: http://www.leica-camera-user.com/landscape-travel/12044-beach.html http://www.leica-camera-user.com/people/12211-augusta-rose.html I'll post some more later. Link to post Share on other sites More sharing options...
harmsr Posted January 1, 2007 Share #3 Posted January 1, 2007 David, Thanks for the photos and explanation. I could actually do the machining myself, but don't think that I want to do that my DR. Just something sentimental about it. Oh well, my M5 will still be happy. Best, Ray Link to post Share on other sites More sharing options...
davidmires Posted January 1, 2007 Author Share #4 Posted January 1, 2007 Hi Ray, I am also sentimental about this lens, that's why I had to use it on my M8. I am not suggesting that anyone do this to their lens, but I'm glad I did it. I just need to refine the process, so I get the most out of it. For the time being though, I'm perfectly happy using it beyond 3'-4". (Which is all I used it for before anyway...) Cheers, David. Link to post Share on other sites More sharing options...
mitchell Posted January 1, 2007 Share #5 Posted January 1, 2007 What does DR stand for? Thanks Mitchell Link to post Share on other sites More sharing options...
harmsr Posted January 1, 2007 Share #6 Posted January 1, 2007 Mitchell, The DR stands for Dual Range. It was a specific version of the Summicron that had a second closer focusing range when the additionaly eyepiece was mounted. Best, Ray Link to post Share on other sites More sharing options...
harmsr Posted January 1, 2007 Share #7 Posted January 1, 2007 Advertisement (gone after registration) David, I know what you mean. The lens is soooo sharp, and with a lower level of contrast vs. the newer lenses that I think it would work out great on the M8. Best, Ray Link to post Share on other sites More sharing options...
Recommended Posts
Archived
This topic is now archived and is closed to further replies.