lateral chromatic aberration

lateral chromatic aberration

[¦lad·ə·rəl krō¦mad·ik ‚ab·ə′rā·shən]
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Stellar images display a small amount of coma and astigmatism in the frame's corners and some minor lateral chromatic aberration as well, but not as much as many wide-angle zoom lenses display when used at full aperture.
In the past, one of the problems with low cost anamorphic lens solutions was color “fringing” that increased toward the edges of the picture and diminished image sharpness, known as lateral chromatic aberration.
However, the disadvantage of the system is the residual lateral chromatic aberration, which gives slight colour fringes to the edges of bright objects, yet it still yields clear, very bright, needle sharp images in spite of this defect.
Such aberrations include curvature of field, spherical aberration, lateral chromatic aberration, distortion and coma.
There is the problem of lateral chromatic aberration due to the wedge at the outer rim of the objective lens, but this has been reduced to a minimum by having a very long focal length.
The Ramsden eyepiece, consisting of two simple planoconvex lenses, suffers from lateral chromatic aberration characterized by spurious fringes of color around bright objects far from the center of the field.
Compatible with all EOS SLRs past and present, it uses three high-precision aspherical lens elements and two Ultra Low Dispersion (UD) lens elements to minimize lateral chromatic aberration and to produce superb image quality with excellent resolution and contrast.
Geo is the first and only chip to offer three independent geometry-processing channels capable of high-precision, pixel-by-pixel processing capable of digitally achieving lateral chromatic aberration correction, one of the big cost adders in optical system designs.
The honour is being conferred upon Panasonic in recognition of the company's development of In-Camera Electronic Compensation for Lateral Chromatic Aberrations in External Lenses.
The optimal placement of low-refraction, low-dispersion UD (ultra-low dispersion) glass corrects for axial and lateral chromatic aberrations to realize exceptional imaging performance without color blurring.
The lens has minimised axial and lateral chromatic aberrations, coma aberrations and geometric distortion.
An innovative in-camera Lens Correction function that electronically adjusts for Distortion and Lateral Chromatic Aberrations to maximize image quality with DA series lenses.

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