Canon New Patents: EF 85mm f/1.2L III and More

Canon filed some new prime lens patents in Japan. These are EF 85mm f/1.2L III, EF 85mm f/1.8, EF 50mm f/1.4, EF 100mm f/2.

• Example
  

  embodiment

  Example	Focal length	Fno.	Length	BF
  One	85.00	1.24	125.55	38.98
  Two	85.00	1.80	113.57	39.50
  Three	51.70	1.41	88.04	39.00
  Four	100.00	2.00	120.00	39.60

  Image height = 21.64mm

via: EG