Originally posted by koper you can bay lenses from sigma
there is no need to bay original pentax lenses
Unless you want a DA12-24 with more usable range and better IQ than the Sigma 10-20.
Or a 55-300 with better IQ by far than the Sigma equivalent.
Or an FA31. Or FA43. Or FA77. Which no other firm comes close to matching.
Or a DA15, DA21, DA40 or DA70 which are incredibly compact for the quality.
Etc. Etc.
Pentax makes great lenses and they are now out of reach for many. I did not buy a Pentax camera (two actually) so I could use inferior third-party glass. I bought it so I could use outstanding Pentax lenses.
Good job for me I already own what I need. (Maybe not what I
want, but that is another question.) But I feel very much for those who bought into a cheaper high-quality solution and now are faced with sacrificing quality or paying a lot more.
Too head off some inevitable rebuttals: I recognise there are some very good Sigma lenses, but the range as a whole cannot compete IMO. I am also aware of (and use) great third-party optics from Vivitar.