Tokina Opera 50mm f/1.4 FF and Pentax DFA 50mm/1.4 FF

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dpreviewblog Regular Member • Posts: 383
Tokina Opera 50mm f/1.4 FF and Pentax DFA 50mm/1.4 FF
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The new Tokina Opera 50mm f/1.4 FF and Pentax DFA 50mm/1.4 FF optically are absolutely identical... And so.... who is the real initial designer of this lens - Pentax or Tokina? And why Pentax d't mention Tokina in development story? - http://www.ricoh-imaging.co.jp/english/products/star_lens/special/sp_dfa50-14/interview/

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