A camera lens is constructed from a series of lens elements, small pieces of glass arranged to form an image accurately on the light-sensitive surface. Each element is designed to reduce optical aberrations, or distortions, such as chromatic aberration (a failure of the lens to focus all colors at the same point), vignetting (darkening of image corners), and distortion (bending or warping of the image). The degree of these distortions can vary depending on the subject of the photo.
a camera lens is constructed from a series of lens elements small pieces of glass arranged to form an image accurately on the light-sensitive surface each element is designed to reduce optical aberrations or distortions such as chromatic aberration (a failure of the lens to focus all colors at the same point) vignetting (darkening of image corners) and distortion (bending or warping of the image) the degree of these distortions can vary depending on the subject of the photo