Archived posting to the Leica Users Group, 2001/06/23

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Subject: Re: [Leica] Re: real lens size
From: Dennis Painter <dennis@hale-pohaku.com>
Date: Sat, 23 Jun 2001 17:21:56 -0700
References: <l03130301b75a821c19b5@[216.40.160.16]>

More precisely  91.0 mm, in Europe that would be 91,0 mm

To answer the unasked, if the two digits were 98 then the focal length would be
89.8 mm.

I started a faq on this but never quite finished it.

Dennis ;-)

Ken Wilcox wrote:

> As I recall that makes it a 91mm.
>
> Ken Wilcox
>
> At 9:46 -0700 6/23/1, a fine scholar, G. Michael Paine wrote:
>
> >With growing fascination I've followed the threads of late that tell
> >me that the small white number on the focus ring indicates the actual
> >focal length of the lens.
> >So, at the risk of appearing redundant: I have just got a new Elmarit
> >90 and there to the right of the white "m" is the number 10.
> >Does this mean that the focal length of this lens is really 100mm? If
> >so this seems a rather large difference from the stated focal length
> >and I would be surprised that Leica or any lens maker would sell a
> >100mm lens as a 90mm.
> >Michael Paine
>
> ----
> Ken Wilcox                                Carolyn's Personal Touch Portraits
>                                           preferred---> <wilcox@tir.com>
>                                           <kwilcox@gfn.org>

In reply to: Message from Ken Wilcox <wilcox@tir.com> ([Leica] Re: real lens size)