Archived posting to the Leica Users Group, 2009/01/04

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Subject: [Leica] 24mm - too close to 28mm? - now DR Summicron, Macro-Elmarit, Macro-Switar
From: sethrosner at nycap.rr.com (Seth Rosner)
Date: Sun Jan 4 06:30:24 2009
References: <495FB9F1.5090804@whitedogs.co.uk> <F5ABB71D5970E1F2979F8FE5@hindolveston.reid.org><327C33F3FC274C0F83A792F443D0F807@D1S9FY41> <495FD0DC.1070703@tele2.fr><D790F6F6BAD04A238B93F0095EBFB0D4@D1S9FY41> <BLU0-SMTP314722A8BAB1F663C14A208CE00@phx.gbl>

Vick Ko wrote:

> Okay, the suspense is killing me.
>
> Which came out first, second and third?
>
> Vick

;-)   Hey Vick, I'm tempted to write: you have to join LHSA and get 
VIEWFINDER magazine to find out! But the answer is: it all depends. Since no 
perfect lens has ever been designed, that is, as Erwin has frequently 
pointed out, every lens is a compromise, correcting these aberrations while 
sacrificing those, designed to achieve the best performance for particular 
use or circumstance.

That said, the short answer is that if you do not need the additional stop 
of speed, in my opinion the Macro-Elmarit is the winner. As to second and 
third, with the help of Roy Youmans of Optikos who did the bench-tests, I'm 
still analyzing the results.

Seth



> Seth Rosner wrote:
>> .... I've had the people at Optikos Corp near Boston do comparative
>> optical tests on the 60mm Macro-Elmarit, the DR Summicron and the
>> Alpa-Kern 50/1,9 Macro-Switar. Will do an article for LHSA VIEWFINDER
>> magazine on the tests.
>>
>> Seth
>
>
> _______________________________________________
> Leica Users Group.
> See http://leica-users.org/mailman/listinfo/lug for more information


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Replies: Reply from vick.ko at sympatico.ca (Vick Ko) ([Leica] 24mm - too close to 28mm? - now DR Summicron, Macro-Elmarit, Macro-Switar)
In reply to: Message from mark at whitedogs.co.uk (Mark Pope) ([Leica] 24mm - too close to 28mm?)
Message from reid at mejac.palo-alto.ca.us (Brian Reid) ([Leica] 24mm - too close to 28mm?)
Message from sethrosner at nycap.rr.com (Seth Rosner) ([Leica] 24mm - too close to 28mm?)
Message from philippe.amard at tele2.fr (Philippe AMARD) ([Leica] 24mm - too close to 28mm?)
Message from sethrosner at nycap.rr.com (Seth Rosner) ([Leica] 24mm - too close to 28mm?)
Message from vick.ko at sympatico.ca (Vick Ko) ([Leica] 24mm - too close to 28mm?)