On May 20, 2009, Pentax announced the lateral chromatic aberration.
2.
Lateral chromatic aberration ( purple / green fringing ) can be significantly reduced by applying such warping for red, green and blue separately.
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A review by " photozone " noted the lens'high lateral chromatic aberration and low edge sharpness, while suggesting that distortion was typical the genre and vignetting relatively modest, while autofocus was " good " and optical stabilisation competitive.
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Other built-in features are a wireless flash commander, two user-customizable modes, full HD video with autofocus and mono audio ( With support for an external stereo microphone ), automatic correction of lateral chromatic aberration and support for GPS and WLAN.
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Also in 2004, "'DO Labs DxO Optics Pro "'( France ) computer software modules were introduced, loaded with information on specific cameras and lenses, that could correct distortion, vignetting, blur and lateral chromatic aberration of images in post-production.
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In the 2.01 firmware update, automatic correction of lateral chromatic aberration is standardized, and Vignetting ( " Vignette control " ), lens distortion ( " Distortion " ) correction, as well as image rotation ( " Straighten " ) via playback ( " Retouch " ) menu, are made possible.
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In 2004, the "'Kodak "'( "'Sigma "') "'DSC Pro SLR / c "'( USA / Japan ) digital SLR was loaded with optical performance profiles on 110 lenses so that the on-board computer could correct the lateral chromatic aberration of those lenses, on-the-fly as part of the capture process.
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"Photozone " described it as " sharp and contrasty " and " far more harmonious than any other similar lenses [ we ] tested to date " with " virtually silent " autofocus, but remarked that it has very high lateral chromatic aberration at the extremes of the zoom range, high barrel distortion at the wide end, image stabilisation that at 2 stops is less effective than other brands, and genre-typical air pumping whose effects could have been mitigated with a weather-sealed design.
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