Cinematographer
Chromatische Aberration zeigt sich als lila oder gruene Saeuem an harten Kanten. Moderne apochromatische Objektive minimieren diesen Effekt erheblich.
Chromatic aberration is an optical defect where different wavelengths refract differently, creating color fringes at high-contrast edges.
Chromatic Aberration
Chromatic aberration is an optical defect in which different wavelengths of light are refracted to different degrees. This leads to visible color fringing at contrast edges in the image.
Types of Chromatic Aberration
Longitudinal CA (LoCA):
- Different colors focus at different distances
- Appears as blurry color fringing in front of and behind the plane of focus
Lateral CA (TCA):
- Different colors are magnified to different degrees
- Appears as a color shift towards the image edge
Correction
- Optical: Apochromatic lenses, ED glass, fluorite elements
- Digital: Profile-based correction in Lightroom, DaVinci Resolve
- Prevention: Stopping down the aperture visibly reduces CA
From the crafts
Perspectives
Director
CA kann als stilistisches Element genutzt werden. Vintage-Objektive mit starker CA erzeugen einen nostalgischen Look.
Producer
Korrektur in Post ist moeglich aber zeitaufwaendig. Hochwertige Objektive mit ED-Glas vermeiden das Problem von vornherein.
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Test your knowledge
Quiz
1. Was beschreibt „Chromatische Aberration / Farbsaeume" am besten?
2. Zu welchem Department gehört „Chromatische Aberration / Farbsaeume"?
3. Wie viele verschiedene Fachperspektiven bietet dieser Eintrag?