Archived posting to the Leica Users Group, 2000/09/26

[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]

Subject: RE: [Leica] 35 Summicrons (was Re: Voigtlander Ultra-Wide - Helia r 12mm f/5.6 Aspherical)
From: Paul Chefurka <Paul_Chefurka@pmc-sierra.com>
Date: Tue, 26 Sep 2000 06:49:42 -0700

>From: Ogilvie, Simon [mailto:sogilvie@adaptivebroadband.com]

>What it boils down to is this:
>
>Exactly how much "better" is the 35 Summicron ASPH
>than the previous non-ASPH, and in what areas is
>it considered "better"?

IME, the ASPH is substantially sharper than the non-asph at 2.0, noticeably
sharper at 2.8, and a bit sharper at 4.0.  At 2.0 and 2.8 it maintains its
center sharpness way out toward the corners, and has a higher macro-contrast
at these apertures as well.  I think it has less flare than the older lens,
too.  Erwin says it has less field curvature, but I've never noticed this -
I'll take his word for it (I don't test lenses, I just use 'em).  I think
Erwin's report is accurate, but for my photographic tastes he understates
the improvements in the ASPH.

Paul

Replies: Reply from Mark Rabiner <mark@rabiner.cncoffice.com> (Re: [Leica] 35 Summicrons (was Re: Voigtlander Ultra-Wide - Heliar 12mm f/5.6 Aspherical))