PC-E Why does Nikon let Canon crush it in this area?

Correct me if I'm wrong, but macro is not primary use of this lens (considering the quality of this model, i think this is a case). As other jobs of this kind (both in studio as in on-location). BTW, is it 100% of original frame? If not, You probably lost sharpness on the back of the tank. Using focus stacking one can get better results for this kind of subjects. Better and cheaper.

I'm using tilt for macro/product work with my pc-e lenses and LF too. But I found even 24mm to be simply too wide in most cases.

While for LF tilt is needed also with architecture work, with 24pc-e it is not as important as one could expect. With 16-35 and 14-24 on the wide end tilt is about the last feature I would add to these lenses.

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Marcin_3M