Archived posting to the Leica Users Group, 1999/10/14
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]"Emanuel Lowi" <mano@proxyma.net> Subject: [Leica] New Hexar RF wrote: >Could Erwin please calculate and post the limits of the .6x VF for fast >aperture >lenses at various focal lengths? I am sure Erwin can give a fuller and more complete response, but both bases of the rangefinders in the M6 (view finder magnification 0.72) and the Konica HM ( viewfinder mag 0.60) are physically very close at 69.25mm (M6) and 69.2mm (HM). Effective base for the M6 is 49.9 (69.25 X 0.72) and for the HM 41.52 (69.2 X 0.60). The difference is 16.8 % and if you refer to Erwins's excellent article at his web site on rangefinder accuracy, as I interpret it, the HM *should* be able to provide focus within an adequate range for all available lenses including the fastest Leica ones. See http://www.imx.nl/photosite/leica/m/bodies/rfaccuracy.html Best Regards Howard Cummer.