Glad to hear you still use that preset Chris
Harald, the earlier batch of lenses has 9 aperture blades opposed to 7 which result in a more rounded aperture when stopping down. That might be worth considering.
The yellow cast can be corrected in PP as Chris has shown in his example. I think that after applying the preset I would have personally added a bit of warmth again through moving the WB slider in LR a +5 to the left. That however is a matter of personal opinion. The lightroom preset was made to render a neutral color from a few test pictures Chris sent me and I am glad to see it still does that when used with the Df. A different camera will need a different correction of course so a new preset would have to be made.
In this preset I adjusted pretty much every single slider in LR that effects color, starting at the camera calibration down to the HSL adjustments, white balance and saturation. The main goal behind that was to not only remove the yellow cast but also retain detail in the reds and greens and find a neutral to cold looking blue without blowing out details on any of the colors. because of the amount of sliders to change I offered Chris to send him the preset I created for his files, which gives a nice starting point or baseline for further PP
