Have you ever looked at a photo and wondered, "What's with all the green and pink colors around high-contrast edges?" That's longitudinal, or axial, chromatic aberration. LoCA. It's common, very difficult to prevent optically and nearly as hard to remove during post-processing.

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Despite rumors to the contrary, Zeiss tells PetaPixel that it did develop its new series of Otus ML prime lenses for full-frame mirrorless cameras.

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