jlphoto Posted October 27, 2008 Share #21 Posted October 27, 2008 Advertisement (gone after registration) My Elmar red scale (meters,1956) has a 9, when looking at it as it is mounted on the camera. Turned the other way it could be a 6. My Summitar (feet, 1949) has oo or perhaps 8. Jim Link to post Share on other sites More sharing options...
Advertisement Posted October 27, 2008 Posted October 27, 2008 Hi jlphoto, Take a look here Help please engraving on Summar. I'm sure you'll find what you were looking for!
jc_braconi Posted October 27, 2008 Share #22 Posted October 27, 2008 Screw mount lenses : Summitar 2/50, m, rounded iris, no engraving Summitar 2/50, m, flat iris, 8 engraving Summicron 2/50 collapsible,m, 7 engraving Summicron 2/50 rigid,m, no engraving Elmar 2.8/50 feet & m no engraving Xenon 1.5/50 no engraving Summarit & Summarit TTH 1.5/50 no engraving Summaron 3.5/35 SM E36 & E39 no engraving Summaron 5.6/28 no engraving Super Angulon 4/21 no engraving Link to post Share on other sites More sharing options...
wizard Posted October 27, 2008 Share #23 Posted October 27, 2008 Summicron 2/50 rigid,m, no engraving If it is the 7-element rigid Summicron, then it will have the engraving on the inner part of the lens head. Only visible once you unscrew the lens head. And it is not simply a number, as with the older lenses, but instead indicates the focal length precisely, usually "51,7" if I remember correctly. Andy Link to post Share on other sites More sharing options...
jc_braconi Posted October 27, 2008 Share #24 Posted October 27, 2008 If it is the 7-element rigid Summicron, then it will have the engraving on the inner part of the lens head. Only visible once you unscrew the lens head. And it is not simply a number, as with the older lenses, but instead indicates the focal length precisely, usually "51,7" if I remember correctly. Andy Yes, it is, there are several writings : 51,9 26 134411 S 46135 Link to post Share on other sites More sharing options...
gurtch Posted October 27, 2008 Share #25 Posted October 27, 2008 My guess was that it was the "vertical 8" for infinity, but i never happened to see the meaning of putting this sign below the lock. Both my Summar (No. 3244xx) and Summitar (No. 5232xx) have it, both have the meter-scale. On postwar 50-Elmars (bayonet) i can't find anything similar. Mine is SN 280090, scale in meters, and the "B" or "8" symbol. Dave G in NJ Link to post Share on other sites More sharing options...
UliWer Posted October 27, 2008 Share #26 Posted October 27, 2008 Perhaps some information I found in Rogliatti's book on the Leica lenses (2nd - german - Edition) gives a clue in our riddle - but certainly no resolution: The book shows pictures of early 3.5/50-Elmars with different buttons for the infinity stops. The early types had a "0" on the focus ring next to the button. Rogliatti explains that the "0" marked the mounts for convertible lenses, as the earlier ones could only be used with the camera they were produced for. May be our strange engravings below the the button had something to do with this; though i don't see the reason to put it on lenses like Summars or Summitars which were never produced non-convertible. Link to post Share on other sites More sharing options...
jc_braconi Posted October 28, 2008 Share #27 Posted October 28, 2008 Advertisement (gone after registration) Perhaps some information I found in Rogliatti's book on the Leica lenses (2nd - german - Edition) gives a clue in our riddle - but certainly no resolution: The book shows pictures of early 3.5/50-Elmars with different buttons for the infinity stops. The early types had a "0" on the focus ring next to the button. Rogliatti explains that the "0" marked the mounts for convertible lenses, as the earlier ones could only be used with the camera they were produced for. May be our strange engravings below the the button had something to do with this; though i don't see the reason to put it on lenses like Summars or Summitars which were never produced non-convertible. This not a zero it is a O for universal (used on interchangeable lens) and it is stamped on the front ring of the lens. you will find the same O on the front flange of the camera (at noon) with universal thread. Link to post Share on other sites More sharing options...
cbretteville Posted October 28, 2008 Share #28 Posted October 28, 2008 My red scale Elmar (feet scale) has a '6', my Sumaron and Summitar doesn't have a mark. - Carl Link to post Share on other sites More sharing options...
jc_braconi Posted October 28, 2008 Share #29 Posted October 28, 2008 My red scale Elmar (feet scale) has a '6', my Sumaron and Summitar doesn't have a mark.- Carl Carl, it'ld be a 9. Link to post Share on other sites More sharing options...
jlphoto Posted November 1, 2008 Share #30 Posted November 1, 2008 In my Leica Equipment Catalogue from 1957 thereis this listing under auxiliary Mounts for the Focoslide. What does this mean, I wonder? JImL 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! Link to post Share on other sites Simply register for free here – We are always happy to welcome new members! ' data-webShareUrl='https://www.l-camera-forum.com/topic/66579-help-please-engraving-on-summar/?do=findComment&comment=701683'>More sharing options...
Philippe D. Posted November 1, 2008 Share #31 Posted November 1, 2008 Hi, and thank You for the hint. In my Leica Equipment Catalogue from 1957 thereis this listing under auxiliary Mounts for the Focoslide. Alright, a quick look into the "Leica Collector's Guide" (2nd edition) say : "Special helical focusing mount for older 50mm Elmar lenses of focal groups 1 to 3 (marked under infinity catch of lens) ...". So i had a look at the Elmar 5cm f/3.5 page (226) and, look at this "4" on the picture. And read the legend: "Note also the figure "4" under the focusing lever: this was a Leitz code for the true focal length of the lens which would vary within a few mm either side of the nominal value." We should read the books, from cover to cover. Link to post Share on other sites More sharing options...
jc_braconi Posted November 1, 2008 Share #32 Posted November 1, 2008 "Note also the figure "4" under the focusing lever: this was a Leitz code for the true focal length of the lens which would vary within a few mm either side of the nominal value."We should read the books, from cover to cover. You are absolutely right Phillip, do you find if this number has to be *.1 to be added to the nominal focal lenght to find the real value ? Link to post Share on other sites More sharing options...
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