A form of optical aberration in which the focus changes from the center to the edge of the field of view. In the presence of astigmatism, this problem is compounded because there are two separate astigmatic focal surfaces. Field curvature varies with the square of field angle or the square of image ...
A lens aberration or defect that causes the image to be formed along a curve instead of on a flat plane
A lens aberration or defect that causes the image to be formed along a curve instead of on a flat plane.