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Lateral Chromatic Aberration
This page shows the extent of lateral chromatic aberration in the Canon RF 28-70mm f/2L. LACA is easily corrected using a single checkbox in Adobe Camera Raw. Many lenses these days allow LACA to be there as one design tradeoff, since it is so easily corrected, and some camera vendors hide this fact by building in a required correction. Not so with the Canon RF 28-70mm f/2L.
6720 size is full camera resolution.
Corrected and uncorrected LACA @ 70mm
This crop taken from an image on the Various Examples page.
Lateral chromatic aberration aka color fringing is prominent at 70mm and should almost certainly be corrected.
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Canon EOS R + Canon RF 28-70mm f/2L USM @ 70mm RAW: Enhance Details, diffraction mitigating sharpening
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