Ultra-Wide Distortion Fix

In my "Battle Of The Super-Wide" post, I show you a picture of the New Zealand Old Government Buildings with the "Beehive" at the foreground.

The picture was taken with my 114° Panasonic 7-14mm f/4 ASPH LUMIX G VARIO which I use on my Olympus E-P2 m4/3 camera.

The lens exhibits the classical "leaning building" symptom of a ultra-wide lens, and I promised;
"In my next post I will show you how to correct this shortfall."