OK - had some time to work with the new girl:
the lavender shot was at f16, the other two at f1.2
a couple of early notes - this lens does not work well in strong daylight, even with a moderate hood - and with the aperture ring maxed out at f16, you simply have to compensate with the DSLR's dynamic range and exposure compensation...
also, bokeh at f16 is surprisingly similar to bokeh at f1.2... but great color saturation and rendering...
fully manual, both aperture and focus rings are solidly-damped, and focus ring runs backwards by Pentax standards..