curvature of field


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curvature of field 

Aberration of an optical system due to the obliquity of the incident rays of light relative to the optical axis. The image corresponding to a plane object lies on a curved surface. This aberration does not usually affect the eye, as the retina is itself curved. See Petzval surface.
References in periodicals archive ?
We noted no astigmatism, curvature of field, barrel distortion, or rolling distortion.
As is the nature of the beast the image did degrade towards the edges and we detected some curvature of field and pincushion distortion.
No spherical aberration, curvature of field, astigmatism, rolling distortion, barrel or pincushion distortion, or anything else for that matter.