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Everybody using wide zooms should be automatically correcting for vignetting, geometric distortion, CA, etc. in RAW coversion. DxO, LR, ACR and others provide this and it's pretty darn amazing. If you want purposeful distortion, you can turn it off, but in most cases you'll want it. It brings zoom lenses into competition with the very best primes (which can also be corrected).
Long-gone are the days when you had to get it right in the camera and primes were all most self-respecting pros would use.
Too few seem aware of the capability of the latest conversion softwares. DxO corrects for every aperture at every focal length of the lenses included in their database. It's amazing.
Dave
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