Barrel Distortion

A friend had asked what "barrel distortion" meant in the lens of a digital camera. This photo illustrates it best. It's not so bad if you're taking landscape or abstract or portraiture. It's lethal for architectural shots. Of course these distortions only occured at the wide-angle shots, so the way to minimise them is to stick to more "conventional" angles. But this is seldom an option for architectural shots... And the thought that you have to adjust each of these shots in Photoshop later on is such a drag....

Chup