A 15mm ultra wide angle lens that covers a full frame sensor. That alone is an impressive perspective. But usually such wide angle glass is prone to distortion and poor image quality due to the extreme field of view.
Apperently not the Distagon 15mm t2.8. This fine lens from the Zeiss labs has some special, “abnormal” glass that will control distortion “extremely well” and allegedly even at wide open aperture the nasty chromatic abberation is “virtually not there“.
They had me convinced until I saw the pricetag of $2950. Urgh. That’s a lot for a photo lens, but then again this surely isn’t an ordinary one.
As usual it’s available as Distagon 15mm ZF for Nikon and Distagon 15mm ZE for Canon.