Re: [Leica] M3 Rangefinder - Was M6 classic and 90mm lenses

[Dennis Painter <dpainter@bigfoot.com>]

The RF image in the M finder is collimated at infinity, there is no
'shifting' of the images when you move your eye. The LTM rangefinders do
have this shifting but with the magnification it's easy to be on center
with their RF.

IMO the flaring problem in the M6 finder is caused by a change that
Leica made in the optics. Some don't have much problem with it but I
have experienced it several times and sometimes it made the RF just
unusable.

Dennis


Mike Quinn wrote:
> 
> Focusing parallax is not much of a problem with either my M3 or the CL.
> 
> As I move my eye, the two images stay apart until just before the
> rangefinder patch disappears. With eyeglasses, one of the images does
> disappear just before the patch disappears. I suppose that might make you
> think the image was in focus (since there are no longer two images).
> 
> Still, you wouldn't be likely to get there while focusing since you'd notice
> either the absence of the second image, the fade-out of the focusing patch,
> or that you couldn't see well through the viewfinder anyway at that angle...
> 
> Rick Dykstra wrote:
> 
> > I've noticed many folks mention that the M3 rangefinder seems less
> > inclined to flare than the M6s.  Well, I was wondering, could the M6
> > viewfinder be designed to flare if one is not looking through it dead
> > straight, so that focussing accuracy is improved?  Any M3 users care to
> > comment?  Focus on a thin vertical line, up close, and move your eye
> > left to right.  What happens to the line?  Does it stay as one
> > where-ever your eye is?