Originally posted by LXNights Very nice lens. Wish I could get it. I also have both the 1.4X and 2X converters and use them with a Pentax 300mm f/2.8 which I love. And I also noticed that you said "when the full frame comes out" which is very interesting, assuming you are, as someone suggested, a beta tester for Pentax. If indeed a FF is coming, I might suggest holding on to this glass, reason being that a FF body would have the same Sony sensor as Nikon's 36 mp FF body, meaning that the results might be close in quality of the 645z, making this more of a keepsake.
I agree with the full frame being around the corner. However, the only stabilized full frame sensor in the market is Sony's newly released 24MP in the 7II. Pentax cannot go non stabilized body since there are no stabilized lenses in the Pentax DSLR lineup. Unless Sony is about to release a 36MP sensor too in which case Pentax can piggy back off the bigger sensor. Otherwise, the first Pentax full frame has to be of 24MP variety. That is why Kerrick is dropping the DSLR in favor of the 645Z. He is a beta tester and can probably see a year or two ahead. Apparently there is no big-MP DSLR Pentax (36MP+) in the near future.