Digital Photographer's Software Guide - Bertemes - Net

Summary
Chapter 23 ■ Lens Distortion Correction 255
No lens is perfect, but even a perfect lens would project perspective distortion if you
were to point it up toward the top of a tall building. Special software exists for correcting
all kinds of lens distortions, from chromatic aberration and vignetting to the perspective
effects mentioned in this chapter. DxO Optics Pro is the leading package for
geometry enhancement, but make sure your lenses are profiled in its database. It is a
dream to use, and excellent value, but if all you need is a low-cost utility, consider
PTLens at a fraction of the price.