The entry-level 122 Dash Cam captures video with a viewing angle of 120 degrees. This is enough to see the whole road and is ideal for any driver in most circumstances.
Given this, you might think that it would be even better to go to 160 or even 180-degree lenses, but in reality there is a sweet spot at which the viewing angle is wide but the images of cars in front of you are not distorted. As soon as you go above around 150 degrees with a lens, this distortion makes Dash Cam videos fairly redundant as evidence. This is why we believe that using a high-quality lens with a clear image and a wide view is the best option.