Pentax had problems with the rebadged lenses they used to sell and has dropped every one except the 100/3.5 Macro, according to the local Pentax Rep.
Another question, why should Pentax make a lens that you, going by your comments, would only buy sencond hand anyway?
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Cliff Nietvelt wrote:
I can live without USM or IS but to have no AF teleconverters is inexcusible. How hard can they be to design?
-- graywolf http://graywolfphoto.com/graywolf.html