Archived posting to the Leica Users Group, 2000/02/13

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Subject: Re: [Leica] Apo-Summicron-M 90/2.0 ASPH tested by CDI
From: "dominique pellissier" <noct@club-internet.fr>
Date: Sun, 13 Feb 2000 17:03:01 +0100

- ----- Original Message -----
From: Pascal <cyberdog@attglobal.net>
To: LUG <leica-users@mejac.palo-alto.ca.us>
Sent: Saturday, February 12, 2000 6:58 PM
Subject: [Leica] Apo-Summicron-M 90/2.0 ASPH tested by CDI


> CDI latest issue (221 Feb) has a test of the Apo-Summicron-M 90/2.0 ASPH.
> The lens obtains 5 stars for quality, 2 for price/performance and 2 for
> "cote d'amour" (= subjective likening of the lens).
> Compared to its predecessor, the quality differences are as follows:
> - better in the field wide open
> - a little bit better in the field at 2.8
> - better in the center at 4.0
> - almost identical at 5.6 and 8
>
> My conclusion: don't throw away your "old" lens (it got 4 stars at the
> time).
> CDI reminds us of the inherent deficiences of a lens of such focal length
> on an M body (small viewfinder image, sizeable obstruction of the
> viewfinder by the lens barrel and hood) and puts into question (as always
> with a Leica lens) whether it is worth the money...
>
> Pascal
> NO ARCHIVE
>
################
On the official Leica site, there are some MTF tests.
If you see the test of the apo90, there is no doubt : at full aperture, this
lens is not an absolute winner.

Conclusion : don't buy the apo90 if you have the old90.