Canon has filed a patent for an EF 135mm f/2L optical formula with apodization filters. From Wikipedia (Via TDP): Apodization is an optical filtering technique, and its literal translation is “removing the foot”. It is the technical term for changing the shape of a mathematical function, an electrical signal, an optical transmission or a mechanical structure. In […]
from Nikon Digital SLR Camera
via Patent: Canon EF 135 f/2L w/Apodization Filters
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