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Re: [OM] 35-70 2.8, 350 2.8 tests

Subject: Re: [OM] 35-70 2.8, 350 2.8 tests
From: frieder.faig@xxxxxxxxxxxxxxxxxxxxxxxxx
Date: Tue, 5 Sep 2000 18:59:07 +0200
On Sun, Sep 03, 2000 at 05:37:28PM +0000, Giles wrote:

> You will get the same 'funny' results if you look at German test 
Please refer to them as (German) Color-Photo Tests... because 
there are other German test`s too.

> results for the 90/2.  It doesn't fare too well against Leica and Zeiss 
> macro lenses either, despite being way faster than any of them.

Well, that`a Story.....
They tested the Macroteles in 1/88+2/88. They had a 1-10 Score System 
(Heinacherzahl)
For every messurment of Sharpness and Contrast, But no Overall-score at all.

The Overall-score was introduced Later, when They ranked all lenses in their
 "Bestenliste".  I don`t know why the 90mm lenses got less overall-point`s
for the same average Heinacherzahl than the 100 mm ones. 

Here are the Results. First Value is the average Score of the published test.
The last colum is The CoFo-overall-score used in Their Bestenliste. 


Four of eight lenses were rated with their "Prüfsiegel":
                        
Lenses with predicate:          Average CoFo-rating (0-100)
 Leitz Apo-Elmarit-R 2.8/100    -> 8.8  -> 87.3
 Zeiss Macro-Planar 2.8/100     -> 8.75 -> 86.6
 Olympus Zuiko 2.0/90 Macro     -> 8.65 -> 78.1 
 Minolta AF-Macro 2.8/100       -> 8.25 -> 84.6

Lenses without predicate:
 Tokina-ATX-Macro 2.5/90        ->8.5   -> 75 .0 
 Tamron 2.5/90 Macro            ->8.4   -> 75.4
 Pentax SMC2.8/100              ->8.1   -> 82.7
 Micro Nikkor 2.8/100           ->7.75  -> 78.4
 Ricoh Ricenon Macro 2.8/105    ->7.0   -> 68.2
 Macro Elicar 2.5/90            ->6.8   -> 67.3

When they changed Their evaluation Systm in 1994, They sad that the new 
Test has stronger criterias. First they had two lists, but later they subtraced 
about 10 0.000000rom the older CoFo-Ratings to make them 'comparable'
 So The score of the Zuiko was lowered to something about  70 Points
 (don`t know annymore)....
While Leica and Zeiss were retested with te new rating System.
Olympus didn`t send them an example of the 2.0/90 Macro for their
retest of the Macroteles.
> 
> Does that magazine have test results for the 180/2, 250/2 or 80/4 macro?  
> I don't suppose it is in English?,  I am a bit linguisticly challanged.

No they never tested one of em.....


Frieder Faig

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