kengai Posted August 13, 2016 Share #1 Â Posted August 13, 2016 Advertisement (gone after registration) with reference to the Summicron 50mm type I, how do you discern the DR, the 11118 (M-rigid-chrom) and SOSIC 11818 (M-rigid-chrom)? Link to post Share on other sites More sharing options...
Advertisement Posted August 13, 2016 Posted August 13, 2016 Hi kengai, Take a look here Summicron 50mm, I tipe. I'm sure you'll find what you were looking for!
a.noctilux Posted August 13, 2016 Share #2 Â Posted August 13, 2016 Check with Wiki: http://www.l-camera-forum.com/leica-wiki.en/index.php/Summicron_%28I%29_f%3D_5_cm_1:2 Â Have fun. Link to post Share on other sites More sharing options...
luigi bertolotti Posted August 13, 2016 Share #3 Â Posted August 13, 2016 with reference to the Summicron 50mm type I, how do you discern the DR, the 11118 (M-rigid-chrom) and SOSIC 11818 (M-rigid-chrom)? By sight Link to post Share on other sites More sharing options...
lct Posted August 14, 2016 Share #4  Posted August 14, 2016 AFAIK: • V1 (11117, 11118) 1951-1957, 7 elements in 6 groups (collapsible and rigid, focus button) 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!  • V2 (11818, 11918) 1957-1968, 7 elements in 6 groups (rigid and dual range, focus button) Link to post Share on other sites Simply register for free here – We are always happy to welcome new members!  • V2 (11818, 11918) 1957-1968, 7 elements in 6 groups (rigid and dual range, focus button) ' data-webShareUrl='https://www.l-camera-forum.com/topic/263454-summicron-50mm-i-tipe/?do=findComment&comment=3096355'>More sharing options...
Michael Geschlecht Posted August 15, 2016 Share #5 Â Posted August 15, 2016 Hello LCT, Â Thank you for these interesting drawings. Â Do you remember where the optical diagrams came from? Â Best Regards, Â Michael Link to post Share on other sites More sharing options...
lct Posted August 15, 2016 Share #6 Â Posted August 15, 2016 Found them on an old site referred to here: http://www.rangefinderforum.com/forums/showpost.php?p=997387&postcount=213 Link to post Share on other sites More sharing options...
luigi bertolotti Posted August 22, 2016 Share #7 Â Posted August 22, 2016 Advertisement (gone after registration) Hello LCT, Â Thank you for these interesting drawings. Â Do you remember where the optical diagrams came from? Â Best Regards, Â Michael Also reported (exactly the same drawings) in Lager's book on lenses. Link to post Share on other sites More sharing options...
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