Patent: Canon EF 135 f/2L w/Apodization Filters

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 Read more. . . .

apodization optical

2016-12-26 19:22