Archived posting to the Leica Users Group, 2003/05/10
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Jerry, I think you will find references showing that the threadmount Leicas with the 1.5x magnification on the rangefinder are more than accurate to focus the faster and longer lenses. Unless you believe Effective Base Length (EBL) is a myth. IIIf has an EBL of 39 x 1.5 = 58.5 M6 .85 has an EBL of 69.25 x 0.85 =58.7 M6 .72 has an EBL of 69.25 x 0.72 = 49.7 M6 .58 has an EBL of 69.25 x 0.58 = 40.2 M3 has an EBL of 69.25 x 0.91 = 63.0 So the M3 should be more accurate than a IIIf, and the IIIf as good as or better than the M6. I have never seen a Leica RF threadmount without a built-in magnifier. Was there such a Leica? Dennis Jerry Lehrer wrote: > Greg > > The SM Leicas never had a long enough rangefinder > base to accurately focus the faster or longer lenses. > Especially the ones without RF magnifiers built in. > > There just is no substitute for a long "wheelbase" RF. > > Jerry > > "Greg J. Lorenzo" wrote: > > > Just what I'd like Leica to start building again, a iiif or iiig (but > > this time) with M Mount. > > > > Regards, > > > > Greg - -- To unsubscribe, see http://mejac.palo-alto.ca.us/leica-users/unsub.html