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Canon 24-70mm f/2.8L II
Canon 24-70mm f/2.8L II

Aperture Series: Alpine Creek Redwoods (Focus Shift Study @ 45mm)

This aperture series shows the depth of field requirements when shooting at ~45mm and what to expect in terms of sharpness near/far and across the field.

Test scene

This scene is presented in the AdobeRGB color space, which as a side note blows-out slightly (with no obvious visible effects) in the red channel compared to ProPhotoRGB— always use 16-bit ProPhotoRGB for quality results.

Click to view the full aperture series at high resolution.

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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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Aperture series 2.8, 4, 5.6, 8, 11, 16 available in full article

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