It looks like we need to start a thread for this new lens. Here are a couple from my first outing - this is the Florida Capitol (Historic & New) in Tallahassee:
Not much distortion at 24mm, as others have reported:
More distortion (not corrected) at 16mm, still a little vignetting at f/16:
Excellent flare resistance - compare to TS-E 17 f/4L below:
COMPARISON IMAGE from TS-E 17 f/4L:
Not much distortion at 24mm, as others have reported:

More distortion (not corrected) at 16mm, still a little vignetting at f/16:

Excellent flare resistance - compare to TS-E 17 f/4L below:

COMPARISON IMAGE from TS-E 17 f/4L:
