The advantages of free-form lenses mainly include reducing distortion, improving image quality and improving perspective. Through its special asymmetrical complex optical design, the free-form lens can solve the distortion problem of ultra-wide-angle lenses at the hardware level, significantly reducing distortion at the edge of the picture, making photos more realistic and natural. This lens design allows light to enter the sensor vertically, thereby reducing the occurrence of distortion and providing better visual effects, especially when taking ultra-wide-angle photos.
In addition, free-form lenses can also improve the clarity and three-dimensionality of the picture. By reducing distortion, free-form lenses can better control the perspective of the picture, making the architectural lines clearer and three-dimensional, and the overall color performance more natural and tense. For example, after OnePlus 9 Pro is equipped with a free-form lens, its ultra-wide-angle photography performance has been greatly improved. The architectural lines are clear and three-dimensional, and the color performance is also very good