Re: [Leica] Question for LUG: frameline on M3 for 35mm summaron lens

[John Collier <jbcollier@home.com>]

Theoretically the rangefinder of an 0.72x camera will not be as accurate as
the rangefinder of an 0.91x camera if they are both using a goggled 35mm
lens; however, not in practice. Your original post, and this one still for
that matter, creates the impression that the goggled 35mm lens will not work
very well with a 0.72x camera. I do not think that this is true. The
magnification works out to be similar to an 0.58x camera and I am not aware
of any focusing problems with an 0.58x camera and a 35mm lens, even of f/1.4
aperture.

John Collier

> From: "Frank Dernie" <Frank.Dernie@btinternet.com>
> 
> Use on a non M3 is possible but not intended and
> naturally results in a loss of rangefinder accuracy. My sources include
> Laney van Hasbroek and Lager of course and owning the lens and cameras in
> question - I haven't used an M2 in years though.