The series available from this page can be a learning tool for understanding the vignetting, bokeh and blur characteristics across the aperture series from f/1.4 through f/16, not to mention how critical precise focus can be, even at f/8, as depth of field shows clearly.
All exposures in these examples were set for f/5.6, letting the wider (brighter) apertures show their relative darkness.
Example — cabin
This image taken mid-morning high in the White Mountains of California, using the 18MP Leica M9. I offer photo tours to this area.
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