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    Conclusions on Mosaic Comparisons —

This mosaic comparison used the Nikon D3x, a 24 megapixel DSLR with ~ 5.6 micron pixels — a challenge for any lens.

This comparison also has its limitations: the lenses were effectively at infinity focus. Performance at other distances can change significantly, as can field curvature, and the combination of focal length and focus distance is endless.

Summary of aperture performance

Apertures f/2.8 and f/4 vary in performance by lens and focal length, ranging from poor to outstanding. Review the crops for details, and lens notes below.

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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.

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