Originally posted by monochrome The significant thing is Sigma is marketing new lenses in K-mount. Some other manufacturers haven't done so for a while.
I agree, this is good news. It seemed like for awhile there, that even Sigma was cutting back on Pentax mount lenses. But since Ricoh came out with a new Pentax lensmap and the K01, there seems to be this "sudden" stocking of new Sigma lenses w/Pentax mount at BH. There may not be too much cost involved in porting already designed lenses over to the K mount, but there is significant expense involved in manufacturing and stocking those same Sigma designs at stores such as BH, Amazon, and Adorama, etc. Sigma is obviously convinced that Pentax is here to stay.