Originally posted by séamuis as if Pentax is the only one with such issues on a 'top of the line lens'. FYI quality control issues are a problem in every lens from the cheapest, to the most expensive. including the likes of canon and even Zeiss. you roll the dice on those issues no matter how much you pay or whos name is on the lens. its a product of modern quality control and everyone pretty much follows the same game plan. 'so called'? give me a break. if you dont like the lens fine. but dont let your dislike give a false image of the lens or Pentax products in general.
Oh, then I take it that the reviewer from DPR should have similar complaints for all the other 50f1.4 they tested... and that would of course make it OK in your book if he had I guess?
Alas, look at the thread on DPR's Penatx SLR forum, someone asked the reviewer if he has had the same kind of troubles with other lenses, then make your own opinion.
Furthermore, what is there to "dislike" about a lens? I like the focal lens and aperture, I also like the external build quality of this lens but given its price, I am expecting a little bit better than a standard product of "modern quality control" (or lack thereof), but that's probably just me and I have already a simple and effective way of expressing my feeling: I just won't buy one.
If you feel it's just business as usual, good for you (and Hoya I guess) and good luck.