New Canon new patent surfaced over the web today, a Canon 18-70mm f/2.8-6 lens designed for fixed lens APS-C camera, read patent details below,
Translated by google
- Patent Publication No. 2012-247758
- Release Date 2012.12.13
- Filing date 2011.5.31
- Example 1
- Zoom ratio 3.80
- 35.12 – – 69.05mm f = 18.17 focal length
- Fno 2.89 -. 4.58 – 5.94
- Half angle of view ω = 33.37 – 20.87 – 11.14 °
- 13.39 – – 13.60mm 11.97 image height
- 89.56 – – 110.05mm 86.88 overall length of the lens
- BF 0.36mm
- 11 pictures in 9 groups lens configuration
- 5 three aspherical surface
- 4-group zoom positive negative positive
- Rear Focus (Group 4)
May the upcoming G2X will have APS-C sensor and advance core specification or may be Canon is willing to announce a new range of pro camera with big sensors, we will update you as soon as we get more info.
source- egami
