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Re: [OM] Cheap 85/2 in Germany

Subject: Re: [OM] Cheap 85/2 in Germany
From: frieder.faig@xxxxxxxxxxxxxxxxxxxxxxxxx
Date: Sun, 27 Oct 2002 19:01:49 +0100
On Sat, Oct 26, 2002 at 12:26:49PM +0200, Peter Stvcklein wrote:
> I understand. I own both. The 2/35 is a bad design (look at the front
> element). Dark edges even at an aperture of 5.6.


I can`t disagree more. Although my trusty 35/2 now has strong compettition
im my kit it is a never to sale lens, because of it`s performance.

To jude the performance of a wideangel-lens by comapiring the
vingetting with a tele in not fair. 
The natural (=mostly unavoidable) vingetting of a 35mm lens is 
0.9 f-stop (cos^4-rule). While a 85 mm lens has only 0.2 F-stop
natural vingetting (=none).
CoFo meassured the vingetting of the 35mm Zuiko, and it matches
the natural vingetting at F5.6.
see:

http://studweb.studserv.uni-stuttgart.de/studweb/users/mas/mas12462/OM/MTF/Zuiko-2-35neu.html


I´ve seen no 35-mm lens with noticeably less vingetting stopped
down. The curved front element is pretty positive in respect to vingetting.

Don`t be so hard with a wide angel lens, and enjoy it`s other
advantages.

Frieder Faig



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