An optical distortion resulting in the image bowing out of square. Barrel distortion is usually associated with less expensive wide-angle lenses and digital cameras, and is most apparent in architectural photographs or images containing lines that run parallel to each other in the horizontal or vertical plane. For more on this subject, see the explora article ://www.bhphotovideo.com/explora/photography/tips-and-solutions/optical-anomalies-and-lens-corrections-explained Optical Anomalies and Lens Corrections Explained.bhphotovideo
Image distortion caused by a lens defect, where the edge bows outwards like a fisheye or wide-angle lens s image.
An electrical adapter for connecting two cables. It has a socket at each end.
A common geometric lens distortion causing an aquired image to pucker towards the centre and be rounded along the outer edges.
A lens effect in which the straight lines in an image appear to be inflated or sphere shaped.
type of distortion, common in less expensive wide-angle lenses, where straight lines at the edges of the image start to appear slightly curved. This can be corrected in post-processing software. Fisheye lenses exhibit a great amount of barrel distortion, but this is the intended effect.