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EXCERPT page containing first few paragraphs. 2019-06-18 21:00:06
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30-megapixel Canon EOS R
Canon RF 28-70mm f/2L

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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Special emphasis is placed on Sony full-frame, including Sony lenses and the high performance Zeiss Batis and Zeiss Loxia lenses plus Rokinon/Samyang and others. Fujifilm X, Olympus and Panasonic M4/3, Sigma dp Merrill and dp/sd Quattro are also covered in depth. Years in the making, it offers a wealth of material for choosing and using a mirrorless camera.

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Variants Uncorrected,Corrected available in full article
f11 @ 1/60 sec, ISO 100; 2019-02-17 08:17:53 [diffraction mitigating sharpening, Enhance Details]
Canon EOS R + Canon RF 28-70mm f/2L USM @ 70mm

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