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A patent showing a Canon 10-120mm f/1.8 lens for a 1″ sensor has become public. Such an optical formula may be a remanent from the XC10 development or could appear in a future video camera product. I’m sure a lot of people would have rather seen an f/1.8 lens in the XC10, instead of the f/2.8 lens it comes with.
Patent Publication No. 2015-75523
- Published 2015.4.20
- Filing date 2013.10.7
Example 1
- Zoom ratio 11.54
- Focal length 10.21 56.31 117.88
- F number 1.87 1.79 1.78
- Half angle (in degrees) 38.07 8.09 3.88
- Image height 8.00
- Overall length of the lens 555.0
- BF 16.56
Canon patents
- 5-group zoom of positive and negative TadashiTadashiTadashi
- Inner focus (part of the first group)
- Inner zoom
- Source: Egami
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