Freelance Photographer in Nagoya, Japan. 写真家 名古屋
ken rockwell has a review on his site. Sorry no link
sent from phone. excuse my typing.
"If its not broken, I can't afford it."
I think only the tilt and shift lenses are completely free of linear distortion, the Tokina however has the best distortion control of all the ultra wide lenses I have used over the years.