Patent: Canon RF 135mm f/1.4L DS USM optical components | Canon Rumors


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Extra optical formulation for big aperture RF mount prime lenses have appeared. This new patent showcases some RF mount prime lenses that make the most of Defocus Smoothing, which first appeared within the RF 85mm f/1.2L USM DS.

Canon RF 24mm f/1.4L USM DS

  • Focal size: 24.55mm
  • F-Quantity: 1.45
  • Half angle of view: 41.39°
  • Picture peak: 21.64mm
  • General size: 119.13mm
  • BF: 38.01mm

Canon RF 50mm f/1.4L USM DS

  • Focal size: 52.13mm
  • F-Quantity: 1.45
  • Half angle of view: 22.54°
  • Picture peak: 21.64mm
  • General size: 85.51mm
  • BF: 37.71mm

Canon RF 135mm f/1.4L USM DS

  • Focal size: 131.00mm
  • F-Quantity: 1.41
  • Half angle of view: 9.38°
  • Picture peak: 21.64mm
  • General size: 182.28mm
  • Again focus: 13.87mm



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