Why is lens distortion a concern for photographers?

Lens distortion is a significant concern for photographers because it can bend straight lines, which may misrepresent the scene. This distortion usually manifests in two common ways: barrel distortion, where lines curve outward, and pincushion distortion, where lines curve inward. Such alterations can mislead viewers about the true representation of the subject being photographed, particularly in architectural photography, where straight lines are crucial for accuracy.

Other aspects, such as color balance or clarity, may indeed be affected by various factors in photography, but the primary issue with lens distortion centers on the geometric integrity of the scene. While some may argue that distortion adds artistic value, this perspective is subjective and not universally accepted, making it a less reliable characteristic for critical or realistic photography.