This series is a visualization tool for bokeh and sharpness of the Canon EF 85mm f/1.2L II across its aperture range, particularly for sharpness in combination with bokeh.
See also Landscape Photography at Wide Apertures.
Bristlecone stump, Patriarch Grove
Shot with the 22-megapixel Canon 5D Mark III at ISO 100.
This is an off-center subject, a bit tricker to deal with for a fast lens because the sharpness tends to fall off away from center, but also the brightness (due to vignetting) unbalances the image. Observe that the bright central area draws attention away from the large stump at lower right; this is one reason to place such subjects centrally (to emphasize them).
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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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