Latest patent surfaced over the web that shows Canon Cinema Lens – 70-200mm F2.8, In genral a lens patent takes at-least 2 to 3 years of time to come into existence as a real product.
Take a look at the lens patent details translated by google
- Patent Publication No. 2015-230449
- Published 2015.12.21
- Filing date 2014.6.6
- Example 1
- Zoom ratio 2.86
- Focal length 70.00 118.30 200.00
- F-number 2.80 2.80 2.80
- Half angle (in degrees) 12.52 7.49 4.45
- Image height 15.55 15.55 15.55
- Overall length of the lens 277.01 277.01 277.01
- BF 44.72 44.72 44.72
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