Bokeh and Blur
How a lens blurs when out of focus is a Big Deal..
optical aberration that looks like “bird’s wings”
See also: lens flare
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2014-04-10 Sigma 50mm f/1.4 DG HSM 'Art' (for Canon, Nikon, etc)
2014-01-22 Sigma 50mm f/1.4 DG HSM 'Art' (for Canon, Nikon, etc)
2014-01-06 Sigma 50mm f/1.4 DG HSM 'Art' (for Canon, Nikon, etc)
2008-12-24 Nikon 50mm f/1.4G — what avian species?
2007-07-04 Shooting stars followup
How a lens blurs when out of focus is a Big Deal..
Sigma’s fast high performance wide angle..
Sigma’s fast high performance normal lens..
Nikon’s latest 50mm lens compared with the Zeiss ZF 50/1.4, Nikon 50/1.4D and Sigma 50/1.4..
State of the art design in a fast ultra wide angle lens..
A brilliant, but also colorful character..
An artist’s drawing tool..
Leica’s fast 28mm..
Fast and ultra high performance moderate wide angle rangefinder lens..
2014-04-10 Sigma 50mm f/1.4 DG HSM 'Art' (for Canon, Nikon, etc)
2014-01-22 Sigma 50mm f/1.4 DG HSM 'Art' (for Canon, Nikon, etc)
2014-01-06 Sigma 50mm f/1.4 DG HSM 'Art' (for Canon, Nikon, etc)
2008-12-24 Nikon 50mm f/1.4G — what avian species?
2007-07-04 Shooting stars followup
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