Main Page | See live article | Alphabetical index A Schmidt corrector plate can be used to correct spherical aberration in a non-parabolic reflecting telescope. This "plate" is actually a lens which refracts the light after it has been reflected by the mirrors. Schmidt corrector plates do not compensation for the lack of magnification which non-parabolic reflectors experience. This article is from Wikipedia. All text is available under the terms of the GNU Free Documentation License.