KnowraOptical aberrationLinked fromLinked fromThe 14 pages that link to Optical aberration, each with the reason it gives.All 14Related 6Narrower topic 3Compared with 5EyepieceNarrower topic: Eyepiece lenses can introduce or correct image defects such as distortion and astigmatism.Primary mirrorNarrower topic: Primary-mirror shape errors appear as optical aberrations in telescope images.Ritchey–Chrétien telescopeNarrower topic: The design selectively corrects aberrations rather than eliminating every image defect.