Just a general comment about older third party lenses (specifically 
wide-angles made by Soligor who was the maker of the common 21mm 3.8 
- same as this 20/3.8?).
I once read a test about a Soligor 35/2.8 (in "Camera 35") where the 
superlative results were said to be normally associated with german 
lenses.  I bough such a lens and found its resolution and contrast to 
be excellent (on a clear day) but also that it vignetted a lot (and 
it's only a 35/2.8!).  Old tests were only talking about muscles: 
resolution of the left arm, resolution of the right arm (what is this 
guy talking about...) but rarely were vignetting and other optical 
aberrations mentionned.  You would then find, for example, an add 
where the resolution of a Spiratone lens was said to be as good as 
that of equivalent lennses from leading brands and the lens sold for 
pennies.  Good resolution of high contrast subjects is probably easy 
to obtain for any lens maker and for litle money.

Low contrast subjects are common in real life and can probably better 
distinguish the good lenses from the bad ones. Am I right?

Andre


>Thanks Bernd,
>too much vigneting for my taste. I'm glad I asked here before buying this
>lens :)
>
>Thanks again,
>Lukasz

>Lukasz, you can find three photos at
>
>http://member.nifty.ne.jp/mafujita/lens/c20.html
>
>Regards
>Bernd

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