List canon patent prime lenses published by egami, details and image are listed below,
List of patent canon lenses
- Canon 85mm F1.2 IS
- 85mm F1.8
- 100mm F2.0
- 135mm F2.0
- 200mm F2.0
- 50mm F1.4
Patent literature, self-interpretation and summary (translated by google)
- Patent Publication No. 2011-253050
- Published 2011.12.15
- Filing date 2010.6.2
- Example
Example Example Focal length Fno Length Lens BF Lens Construction One 85.00 1.24 126.06 39.13 Nine elements in 7 groups Two 85.00 1.80 113.00 42.34 Nine elements in 7 groups Three 100.00 2.00 120.00 42.27 Nine elements in 7 groups Four 133.30 2.06 158.90 51.86 10 sheets in 7 groups Five 196.00 2.05 223.50 50.00 15 pieces in 10 groups Six 51.70 1.41 89.92 39.00 Eight elements in 7 groups Both the image height is 21.64mm (full size)
