[Automatic translation]

Optical defect correction software is essential, especially for lower quality lenses. Corrections apply to line distortions and less than uniform light application.

Adobe Lightroom already incorporates this technology. A friend without Lightroom asked me to suggest other software for his correction of his 18-55mm f / 3.5-5.6. Here are the results of a quick look on the internet:

Canon software. http://www.canon.fr/support/camera_software/

https://www.chassimages.com/forum/index.php?topic=103720.0

http://listoffreeware.com/best-free-lens-distortion-correction-software/

PT Lens. http://epaperpress.com/ptlens/

Maybe in the future I may be interested in how a photographer can actually work in Linux.