Re: M3 DOF in viewfinder?

[Dennis Painter <dwp@deltanet.com>]

Dave Munroe wrote:
> 
> I've seen several references to a quick way of assessing depth of field
> in the viewfinder of the M2 and the literature implies this is true of
> the M3 as well.
> 
> The diagram shows what appears to be the central rangefinder patch, with
> different size "notches" at the top and bottom of the patch.  From what
> I remember, the near and far limits of depth of field can be determined
> when the double image of a vertical object falls within these notches.
> 
> The problem is, my M3's rangefinder patch is a quite ordinary rectangle
> with no such notches.  They aren't referring to the gaps in the top and
> bottom of the frame lines, are they?  If so, these gaps seem to be the
> same width and, being outside the rangefinder patch, no double image
> will appear within them, of course.
> 
> This has been puzzling me for quite some time; my grateful thanks for
> any answers.
> 
> -Dave

Dave,

I don't belive this feature appeared on the M3.  The finders are quite
different but I suppose it might have been possible for Leica to
incorporate it into the M3.

Others here likely know for sure.

Dennis
- -- 
Experience is a tough teacher. It gives the test before the lesson.
- -unknown