Canon has just filed two new patents for Canon RF 70-300 F4-5.6 and 70-400mm F4-5.6 Lens. Read the details below:
- focal length 72.00 146.00 290.00
- F number 4.08 4.88 5.67
- Half angle of view (degrees) 16.72 8.43 4.27
- Image height 21.64 21.64 21.64
- Total lens length 140.00 177.20 210.00
- BF 25.13 44.86 61.65
- focal length 72.62 168.49 389.89
- F number 4.07 5.10 5.85
- Half angle of view (degrees) 16.59 7.32 3.18
- Image height 21.64 21.64 21.64
- Total lens length 187.91 236.14 268.26
- BF 13.80 27.53 35.04
Read More Canon Lens Patent
See also 2019 Canon Lens Deals