Hi @VigiNet 

Thanks for posting in our business forum.

Wide-angle lenses experience distortion in the corners which is a very normal symptom.

For the high-end cameras with wide-angle lenses which may cost $10K, you still experience the same thing. The distortion will not be that serious when the price of the lenses goes up. The more expensive the lenses are, the less distortion they gain. But this feature cannot be removed unless there is an innovation in the lens technology and the price for making such a thing drops.