I think that most of Sigma's production goes to making the 120-300 zooms for Canon and Nikon so there's really nothing left for Pentax. Just a thought.
I must be in some weird why why why mood, but I was also wondering what kind of issues stop Sigma from offering it's 120-300 2.8 lens in a Pentax mount. I was just wondering because considering that with a 2x converter it'd be a 240-600 5.6, it would have been an affordable alternative to anyone who wanted a FA * 250-600 5.6. Ponder ponder, Ryan
