rainer, did you try and tested the Nikon 24 PC? curious
yes , this is the lens i was working. optically very good, nearly as good than the canon counterpart, but not reaching it complete.
at f8-11 very sharp till the corners even when fully shifted.
if shifted in 45 degree angle to its limit it vignettes a bit the corner, the eff. image circle is about , i would say 55 - 60mm.
a tiny bit of CA, but really tiny.
good distortion, a bit worse than the canon 24tse II.
mechanically somehow crappy,- i had the older version and it was from the calumet rental and was already very used.
the new 24PC i bought afterwards is better damped if the shift is locked.
but overall its a very good lens which is sharp enough to resolve the 800e to its limit.
i hardly doubt that any unsymmetric mf wide angle lens will do better, with or without red dot.
at least my sinar/zeiss M 40mm and my contax 35mm lenses are not better
( although not worse- both might perform similar in terms of sharpness and CA than the 24PC ).
i dont know about and even i dont know if there is a leica S counterpart.
mamya 645 35mm and pentax 645 35mm lenses are less good.
and all of these lenses above are not shiftable.
the rodenstocks 28 & 35 HR are somehow sharper and have less/none CA.
distortion might be similar, but sensitive to flare they render with backlight much worse, at least the 28HR.
about new zeiss WA i have not so high expectations, i will see if they will change my mind.
i tested all 35mm zeiss wa glass and i think the only good one in their line up is the fat 21mm, which shows at the same time a lot of moustache. best fixed focal wide i could find is the voigtländer 3,5/20, but i had to try several samples till i had a real sharp one. as well as the vl 40mm ( but longer than 35mm lenses are many good ones ). both resolve with the nikon very crispy, if stopped down to f8.