The Nikon 14-24 F/2.8G lens is a legend and one of the best zoom lenses of it's time but how does the new Nikon 14-24 F/2.8S lens built for the Z system compare?
Personal opinion, the stars are pinpoint corner to corner with next to no chromatic aberration. There is light fall off (Vignette) like all lenses however the Z camera can compensate for this and add it's own lens correction to remove the light fall off.
However I'll let you be the judge!
vImage Below - 14mm F/2.8 - ISO 3200 - 20 Seconds
gImage Below - 20mm F/2.8 - ISO 3200 - 20 Second Exposure
Image Below - 24mm F/2.8 - ISO 3200 15 Second Exposure
IImage Below - 14mm F/2.8 - ISO 800 - 2 Minute Exposure