EXCERPT page containing first few paragraphs. 2024-04-18 19:28:42
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Distortion and Distortion Correction
This page shows distortion examples with the Canon RF 24-70mm f/2.8L IS USM at various focal lengths.
When evaluating the images/crop on a Retina display at 220 ppi, it will be harder to see differences. Think of this as a small print. When evaluating on a lower-ppi display like the 110 ppi NEC PA302W, the rubber meets the road as to what a large print would be like. See also pixel density.
Toggle to compared uncorrected to corrected.
Distortion @ 24mm
Mild barrel distortion dominates at 24mm (with variation, more than simple barrel distortion perhaps). It is low enough that it can remain uncorrected for most landscape subjects, but architecture and portraiture and horizons should probably use distortion correction.
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Diglloyd Guide to Mirrorless offers comprehensive integrated coverage of most APS-C and full frame mirrorless cameras and lenses.
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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