Archived posting to the Leica Users Group, 2005/01/13
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]My Leica 50mm f2.0 DR lens focuses to about 18 inches. ?This lens came with my M4 and dates from late '60's. ?While the new 90 mm needs an adapter to close focus, it's an asph! Nothing wrong with these people. Bill Parsons 601 Congress Street, Boston, MA 617-663-2592 (cell) 617-680-2779 |+------------------------------+-----------------------------------------| || "Frank Filippone" | | || <red735i@earthlink.net> | ? ? ? ? To: ? ? ? ?"Leica Users Group"| || Sent by: | <lug@leica-users.org> | || lug-bounces+bparsons=jhanco| ? ? ? ? cc: | || ck.com@leica-users.org | ? ? ? ? Subject: ? ? ? ?RE: [Leica] | || | The Zeiss Choice | || 01/13/2005 09:50 AM | | || Please respond to "Leica | | || Users Group" | | |+------------------------------+-----------------------------------------| The issue of focusing a RF lens to .5M has 2 components... the movement of the lens focusing helix to .5M, and the parallax so that the 2 images line up at .5M. Given that no one has ever done this before, I suspect the parallax adjustment in the RF is the problematic part. The third issue is what part of the image area is obscured by the lens when you look through the VF at .5M. It may not be all roses......real world physics is like that sometimes. Frank Filippone red735i@earthlink.net _______________________________________________ Leica Users Group. See http://leica-users.org/mailman/listinfo/lug for more information