I was doing some indoor portraits of the boys today with the ist ds and thought of this thread.
A good chance to directly compare the K-01 and the ist ds to see why I prefer the ist ds.
The lens was the same - SMC Pentax -M 1:3.5 28mm ( I used 2 other lenses too)
The flash was the AF360fgz in slave mode down low to the left side, pointing to the ceiling in A mode.
I just changed the bodies onto the same tripod.
Both iso 200 and both f/11, both cameras in manual of course.
So these photos have a range from the blown tablecloth next to the flash, over to the darkness on the right side.
istds jpg & raw
https://app.box.com/s/xt9wzgvkkbkhjxcupcty https://app.box.com/s/gcerfsttli1wqhn6kdmj
K-01 jpg & raw
https://app.box.com/s/l9u0f78ti2bzdwzon8ic https://app.box.com/s/kf6gr0rtndypkheji93j
To me, it is definite that the ist ds colors on the Eizo are more accurate and realistic to what I see in daylight coming through the window particularly in the lower light area, both in the camera jpgs and the raws as they come into ufraw with the camera color temperatures.
For example the curtains are really a gold color like the ist ds shot, not gray tinged like the K-01.
The awb color temps from the cameras were almost identical (4850K +/- 15K). The K-01's raw EV needed a 1.5 EV boost to be same brightness as istds raw .
I suppose I could pull the curves of the K-01 into color, but why bother, I think I will just use the ist ds while it still works fine.
Finally, although not related to this thread, I can focus the ist ds sharply, but see that the K-01 is not focussed correctly, it is front focussed.
I have a 2010 model Olympus M43 and I also get the feeling the ist ds is better than it, although I have not done a direct comparison.