kalansilmäefekti

The kalansilmäefekti, translated as the fish-eye effect, is a visual distortion that occurs when a wide-angle lens is used in photography or videography. This type of lens captures a much broader field of view than a standard lens, which results in a characteristic barrel distortion. Straight lines near the edges of the frame appear to curve outwards, resembling the curved surface of a fish's eye.

This effect is intentionally used by photographers and filmmakers to create a sense of expansiveness, to emphasize a particular perspective, or to achieve a dramatic and immersive visual style. It can exaggerate the sense of space, making environments appear larger or more dynamic. The distortion is most pronounced at the periphery of the image and less noticeable towards the center.

While the fish-eye effect can be a powerful creative tool, it can also be considered undesirable if a natural or undistorted perspective is desired. Post-processing software often includes tools to correct or reduce this distortion if necessary. The term is also sometimes used metaphorically to describe a distorted or exaggerated perspective in other contexts, though its primary meaning relates to optical phenomena.