See my Pentax K1 wish list at B&H Photo.
In my review of the Pentax Pentax 15-30mm f/2.8 ED SDM WR, this aperture series evaluates the Pentax 15-30/2.8 from f/2.8 through f/13 on a demanding target in SuperRes Pixel Shift Mode.
Shot at 30mm, it finishes out the range; see the series at 15mm and series at 21mm. The three series provide a good impression of the performance potential over the zoom range, as well as showing distortion.
Includes ACR processing settings, images up to 28 megapixels and large crops, all from f/2.8 through f/13.
The entire series is shot in pixel shift mode to critically evaluate both the K1 SuperRes mode as well as the Pentax 15-30mm f/2.8.