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Examples—varying sharpness (field curvature)

Through serendipity, the focus for this example happens to demonstrate the varying field of sharpness of the 24/1.4L II. The image was taken at f/1.4, and studying it gets curiouser and curiouser (apologies to anyone named Alice).

You are advised to download this image and study it in Photoshop (click on it for the full-res version).

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diglloyd Advanced Photography includes hundreds of pages of exclusive coverage and high resolution, Retina-grade example pictures detailing Canon and Nikon DSLR bodies and their lenses, with in-depth analysis of sharpness and contrast, color, bokeh, vignetting, distortion, MTF, and flare. Also included is a wealth of in-context technique and workflow insight. Since 2006, diglloyd Advanced Photography is the authoritative review and on-line reference for discerning Canon and Nikon shooters. Subscriptions cost $ per year.

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EF 24/1.4L II @ f/1.4

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