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Correcting Distortion in Software

While I was preparing this review, a subscriber wrote to say:

That leaves me puzzled when you complain about lens distortion, which can be corrected by Photoshop, DxO Optics Pro, and Capture NX2. I would also like to buy perfect lenses at a reasonable price, but I do not believe that will happen anytime soon... I am more interested in getting satisfactory photos using these tools .

That claim is true, but it is also not true, depending on context. It all depends, as I’ll explain here. Also, a “satisfactory” image is in the eye of the beholder.

Why I cover distortion in lenses

When I review lenses, I emphasize any lens traits that I feel might be of particular concern to at least some segment of the photographer population— the fact that some other segment might not care is irrelevant; I must point out lens behavior of any kind that is worth noting so as to be useful to a broad range of photographers, because it really matters for some photographers.

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Since 2006, Diglloyd Advanced Photography is the authoritative review and reference for DSLRs and their lenses: Canon and Nikon primarily, but also Pentax and some medium format. Reviews of key DSLRs are included, but the primary focus is on lens performance. Also included is a wealth of technique and workflow approaches.

DAP includes thousands of pages of exclusive coverage and high resolution Retina-grade examples detailing Canon and Nikon DSLR bodies and their lenses, with in-depth analysis of sharpness and contrast, color, bokeh, vignetting, distortion, MTF, and flare, behavioral and practical usage.

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