Archived posting to the Leica Users Group, 2000/07/31

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Subject: Re: [Leica] 40mm Summicron Mystery
From: "Dan Post" <dpost@triad.rr.com>
Date: Mon, 31 Jul 2000 11:22:42 -0700
References: <20000731140820.15009.qmail@larch.math.umn.edu>

Since it is modestly 'wide', is it all that critical, except for very wide
apertures?
With a wider lens, focus at infinity seems pretty much a moot point- cose is
good enough, and focusing extremely close just begs for distortion that may
well obviate any question of focus- in the mid range- the DOF would, it
seems, make it less critical.
N'est-ce pas?
Dan ( who usually 'zone' focuses his 35 lenses when outside) POst
- ----- Original Message -----
From: <goldman@math.umn.edu>
To: <leica-users@mejac.palo-alto.ca.us>
Sent: Monday, July 31, 2000 7:08 AM
Subject: [Leica] 40mm Summicron Mystery


> If the 40 summicron focuses correctly at infinity with an M body,
> then it should be ok at all distances.  This was Leica's advice when the
> 40 came out.  It has a steeper focusing cam than regular M lenses and
> there is about a 50-50 chance it will work on any given M body.
> Jay Goldman
>

In reply to: Message from goldman@math.umn.edu ([Leica] 40mm Summicron Mystery)