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Canon EF 40mm f/2.8 STM
Canon EF 40mm f/2.8 STM

Aperture Series: Rancher’s Cabin

The goal of this aperture series is primarily to show the sharpness and depth of field behavior, and to some extent the bokeh and vignetting.

The series is presented at 50% (linear) of actual pixels (22-megapixel Canon 5D Mark III), and is best viewed on a very high resolution (Retina) display.

Test scene

Mountain sunlight at mid-day.

The scene was chosen for a good 3D depth of focus to assess how stopping down affects image sharpness.

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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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