Patent: Canon EF 50mm f/1.4 with apodization filter

Canon Rumors
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As soon as I read this patent, I immediately thought of someone. The Canon Rumors community knows who I’m talking about.

This patent covers the optical formula for an EF 50mm f/1.4 with an apodization filter, perhaps this could be part of a new line of “DS” lenses, first started with the RF 85mm f/1.2L DS.

Canon EF 50mm f/1.4 Japan Patent Application 2019-056780:

  • Focal distance 52.43mm
  • F number 1.49
  • Field angle 22.42°
  • Image height 21.64mm
  • Length of the lens 88.51mm
  • BF 39.71mm

The goal of this patent is to improve the bokeh of the lens using new apodization technology that Canon has developed.

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