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

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Subject: RE: [Leica] 35 Summicrons
From: Buzz Hausner <Buzz@marianmanor.org>
Date: Tue, 26 Sep 2000 11:29:48 -0400

The "spherical" 35 Summicron is a good deal shorter and a tad lighter than
it's aspherical sister.  I also recommend buying either lens in its black,
aluminum barrel expression, which is lighter yet and less costly than the
brass-barreled silver finish.  There are a bunch of books and perhaps web
sites (Irwin's?) which give the particulars, but I find that an M6 with the
spherical version mounted slips into my jacket pocket while with the
aspherical mounted it does not.  I also use the 12585 vented shade in place
of the square shade supplied with either lens.

	Buzz Hausner

- -----Original Message-----
From: Peter Shier [mailto:pshier@mindspring.com]
Sent: Tuesday, September 26, 2000 11:15 AM
To: leica-users@mejac.palo-alto.ca.us
Subject: RE: [Leica] 35 Summicrons


I too am trying to decide on a 35mm lens. As I cannot find any specs on the
pre-asph, you can tell me why is it more portable than the Summicron asph
which weighs in at 255 grams with a 39mm filter and 34.5mm long? That seems
very portable to me.

Peter

- -----Original Message-----
From: owner-leica-users@mejac.palo-alto.ca.us
[mailto:owner-leica-users@mejac.palo-alto.ca.us]On Behalf Of Buzz
Hausner
Sent: Tuesday, September 26, 2000 10:35 AM
To: 'leica-users@mejac.palo-alto.ca.us'
Subject: RE: [Leica] 35 Summicrons


On the other hand, if your optimization function includes a kit which can be
carried in one's pocket you can't beat the pre-aspheric.  I own both and
prefer the pre-aspheric because of its portability in addition to its
wonderful image quality which I freely admit isn't up to the micro hoo-ha of
the aspheric.  It all depends upon what you, the individual photographer,
wants in her or his gear.

	Buzz Hausner

- -----Original Message-----
From: Paul Chefurka [mailto:Paul_Chefurka@pmc-sierra.com]
Sent: Tuesday, September 26, 2000 9:50 AM
To: 'leica-users@mejac.palo-alto.ca.us'
Subject: RE: [Leica] 35 Summicrons (was Re: Voigtlander Ultra-Wide -
Helia r 12mm f/5.6 Aspherical)


>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