On 22/1/17, P. J. Alling, discombobulated, unleashed:

>I don't have direct evidence for the Zeiss only reviews and reputation.  
>That said, the Pentax, in fact all Pentax 50mm/55mm* are classic 
>designs. A bit soft wide open, softer in the corners on film.  Stop down 
>to f4.0 or 5.6 and they become sharp as hell, but I expect you noticed 
>this.  This behavior is by design, to give a soft look to portraits 
>while enabling greater sharpness for other purposes.
>
>The Zeiss is supposed to be a more modern design but still has the 
>classic behavior,  sharpening up at f2.8, getting sharper as you stop 
>down to about f8.0.   They are similar beasts, but the Zeiss is slightly 
>sharper.
>
>Mechanically the Zeiss is built like an old fashioned Takumar M42 screw 
>mount lens, all high quality metal plus a metal bayonet on lens hood, 
>something the Tak's never had.    Strangely though this lens is part of 
>a series released in the 0's it came in Nikon F, Canon EOS, Pentax Ka, 
>and M42...
>
>In case you're interested you can read God's Great Gift to 
>Photography's** review of this lens, which is as opinionated and and 
>laughably at odds with pretty much ever other review as you might expect.
>
>*The 43mm Ltd, and 40mm M lenses share this characteristic to some 
>extent too.
>
>**Kennyboy in his own mind, he's so sure of himself, if you didn't know 
>better,  you might just believe him.

Very interesting! Thanks for the insight PJ

-- 


Cheers,
  Cotty


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