| 11. | He would be left, however, with spherical aberration which is just as damaging to image sharpness.
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| 12. | Lenses in which both spherical aberration and coma are minimised are called " bestform " lenses.
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| 13. | The reason for improved depth of focus in conventional lenses is linked to residual spherical aberration.
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| 14. | Most eyes show positive spherical aberration when unaccomodated with a trend toward negative spherical aberration on accommodation.
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| 15. | All optics on the first wheel have an aspheric profile to correct for the Hubble spherical aberration.
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| 16. | Aspherical intraocular lenses ( IOLs ) have been used clinically to compensate for positive corneal spherical aberrations.
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| 17. | Most eyes show positive spherical aberration when unaccomodated with a trend toward negative spherical aberration on accommodation.
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| 18. | Spherical aberration limits the resolution of a 7 mm pupil to about 3 arcminutes per line pair.
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| 19. | This is done by rotating elements that are inside of the lens to create deliberate spherical aberration.
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| 20. | In particular, spherical mirrors exhibit spherical aberration.
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